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IPC entry: H01J 29/50 3-dot subgroup [Version 2024.01 (current), Language EN - English]

Symbol Select IPC entry Title
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONS; TRANSPORTING
C
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CHEMISTRY; METALLURGY
D
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TEXTILES; PAPER
E
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FIXED CONSTRUCTIONS
F
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MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G
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PHYSICS
H
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ELECTRICITY
H01
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ELECTRIC ELEMENTS
H01B
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CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F 1/00; waveguides H01P)
H01C
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RESISTORS
H01F
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MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES [2]
H01G
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CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B 3/00; capacitors having potential barriers H01L 29/00)
H01H
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ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B 7/10;  electrolytic self-interrupters H01G 9/18;  emergency protective circuit arrangements H02H;  switching by electronic means without contact-making H03K 17/00)
H01J
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ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; arc lamps with consumable electrodes H05B; particle accelerators H05H)
H01J 1/00
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Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps (details of electron-optical arrangements or of ion traps H01J 3/00) [1, 2006.01]
H01J 3/00
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Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps [1, 2006.01]
H01J 5/00
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Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps [1, 2006.01]
H01J 7/00
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Details not provided for in groups H01J 1/00-H01J 5/00 and common to two or more basic types of discharge tubes or lamps [1, 2006.01]
H01J 9/00
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Apparatus or processes specially adapted for the manufacture of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps [1, 7, 2006.01]
H01J 11/00
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Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP] (circuits or methods for driving PDPs G09G 3/28); Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel [1, 2006.01, 2012.01]
H01J 13/00
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Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes [1, 2006.01]
H01J 15/00
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Gas-filled discharge tubes with gaseous cathodes, e.g. plasma cathodes [1, 2006.01]
H01J 17/00
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Gas-filled discharge tubes with solid cathodes (H01J 25/00, H01J 27/00, H01J 31/00-H01J 41/00 take precedence; gas filled spark gaps H01T; Marx converters H02M 7/26) [1, 2006.01]
H01J 19/00
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Details of vacuum tubes of the types covered by group H01J 21/00 [1, 2006.01]
H01J 21/00
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Vacuum tubes (H01J 25/00, H01J 31/00-H01J 40/00, H01J 43/00, H01J 47/00, H01J 49/00 take precedence; details of vacuum tubes H01J 19/00) [1, 2006.01]
H01J 23/00
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Details of transit-time tubes of the types covered by group H01J 25/00 [1, 2006.01]
H01J 25/00
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Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons (details of transit-time tubes H01J 23/00; particle accelerators H05H) [1, 2006.01]
H01J 27/00
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Ion beam tubes (H01J 25/00, H01J 33/00, H01J 37/00 take precedence; particle accelerators H05H) [1, 2006.01]
H01J 29/00
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Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J 31/00 [1, 2006.01]
H01J 29/02
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. Electrodes; Screens; Mounting, supporting, spacing, or insulating thereof [1, 2006.01]
H01J 29/04
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. . Cathodes [1, 2006.01]
H01J 29/06
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. . Screens for shielding; Masks interposed in the electron stream [1, 2006.01]
H01J 29/07
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. . . Shadow masks for colour-television tubes [2, 2006.01]
H01J 29/08
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. . Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked-up, converted or stored, e.g. backing-plates for storage tubes or electrodes for collecting secondary electrons [1, 2006.01]
H01J 29/10
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. . Screens on, or from, which an image or pattern is formed, picked-up, converted, or stored [1, 2006.01]
H01J 29/12
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. . . acting as light valves by shutter operation, e.g. for eidophor [1, 2006.01]
H01J 29/14
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. . . acting by discolouration, e.g. halide screen [1, 2006.01]
H01J 29/16
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. . . Incandescent screens [1, 2006.01]
H01J 29/18
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. . . Luminescent screens [1, 2006.01]
H01J 29/20
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. . . . characterised by the luminescent material [1, 2006.01]
H01J 29/22
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. . . . characterised by the binder or adhesive for securing the luminescent material to its support, e.g. vessel [1, 2006.01]
H01J 29/24
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. . . . Supports for luminescent material [1, 2006.01]
H01J 29/26
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. . . . with superimposed luminescent layers [1, 2006.01]
H01J 29/28
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. . . . with protective, conductive, or reflective layers [1, 2006.01]
H01J 29/30
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. . . . with luminescent material discontinuously arranged, e.g. in dots or lines [1, 2006.01]
H01J 29/32
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. . . . . with adjacent dots or lines of different luminescent material, e.g. for colour television [1, 2006.01]
H01J 29/34
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. . . . provided with permanent marks or references [1, 2006.01]
H01J 29/36
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. . . Photoelectric screens; Charge-storage screens [1, 2006.01]
H01J 29/38
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. . . . not using charge storage, e.g. photo-emissive screen, extended cathode [1, 2006.01]
H01J 29/39
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. . . . Charge-storage screens [1, 2006.01]
H01J 29/41
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. . . . . using secondary emission, e.g. for supericonoscope [1, 2006.01]
H01J 29/43
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. . . . . using photo-emissive mosaic, e.g. for orthicon, for iconoscope [1, 2006.01]
H01J 29/44
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. . . . . exhibiting internal electric effects caused by particle radiation, e.g. bombardment-induced conductivity [1, 2006.01]
H01J 29/45
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. . . . . exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen [1, 2006.01]
H01J 29/46
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. Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement [1, 2006.01]
H01J 29/48
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. . Electron guns [1, 2006.01]
H01J 29/50
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. . . two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes (H01J 29/51 takes precedence) [1, 2, 2006.01]
H01J 29/51
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. . . Arrangements for controlling convergence of a plurality of beams [2, 2006.01]
H01J 29/52
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. . Arrangements for controlling intensity of ray or beam, e.g. for modulation [1, 2006.01]
H01J 29/54
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. . Arrangements for centring ray or beam [1, 2006.01]
H01J 29/56
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. . Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses [1, 2006.01]
H01J 29/58
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. . Arrangements for focusing or reflecting ray or beam [1, 2006.01]
H01J 29/60
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. . . Mirrors [1, 2006.01]
H01J 29/62
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. . . Electrostatic lenses [1, 2006.01]
H01J 29/64
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. . . Magnetic lenses [1, 2006.01]
H01J 29/66
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. . . . using electromagnetic means only [1, 2006.01]
H01J 29/68
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. . . . using permanent magnets only [1, 2006.01]
H01J 29/70
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. . Arrangements for deflecting ray or beam [1, 2006.01]
H01J 29/72
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. . . along one straight line or along two perpendicular straight lines [1, 2006.01]
H01J 29/74
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. . . . Deflecting by electric fields only [1, 2006.01]
H01J 29/76
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. . . . Deflecting by magnetic fields only [1, 2006.01]
H01J 29/78
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. . . along a circle, spiral, or rotating radial line, e.g. for radar display [1, 2006.01]
H01J 29/80
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. . Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching [1, 2006.01]
H01J 29/81
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. . . using shadow masks [3, 2006.01]
H01J 29/82
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. . Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements [1, 2006.01]
H01J 29/84
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. Traps for removing or diverting unwanted particles, e.g. negative ions or fringing electrons; Arrangements for velocity or mass selection [1, 2006.01]
H01J 29/86
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. Vessels; Containers; Vacuum locks [1, 2006.01]
H01J 29/87
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. . Arrangements for preventing or mitigating effects of implosion of vessels or containers [2, 2006.01]
H01J 29/88
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. . provided with coatings on the walls thereof; Selection of materials for the coatings [1, 2006.01]
H01J 29/89
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. . Optical or photographic arrangements structurally combined with the vessel [1, 2006.01]
H01J 29/90
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. Leading-in arrangements; Seals therefor [1, 2006.01]
H01J 29/92
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. Means forming part of the tube for the purpose of providing electrical connection to it [1, 2006.01]
H01J 29/94
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. Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering [1, 2006.01]
H01J 29/96
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. One or more circuit elements structurally associated with the tube [1, 2006.01]
H01J 29/98
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. Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for [1, 2006.01]
H01J 31/00
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Cathode-ray tubes; Electron-beam tubes (H01J 25/00, H01J 33/00, H01J 35/00, H01J 37/00 take precedence;  details of cathode-ray tubes or of electron-beam tubes H01J 29/00) [1, 2006.01]
H01J 33/00
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Discharge tubes with provision for emergence of electrons or ions from the vessel (particle accelerators H05H); Lenard tubes [1, 2006.01]
H01J 35/00
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X-ray tubes [1, 2006.01]
H01J 37/00
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Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof (H01J 33/00, H01J 40/00, H01J 41/00, H01J 47/00, H01J 49/00 take precedence) [1, 2, 5, 2006.01]
H01J 40/00
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Photoelectric discharge tubes not involving the ionisation of a gas (H01J 49/00 takes precedence) [3, 2006.01]
H01J 41/00
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Discharge tubes and means integral therewith for measuring gas pressure; Discharge tubes for evacuation by diffusion of ions [1, 2006.01]
H01J 43/00
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Secondary-emission tubes; Electron-multiplier tubes (dynamic electron-multiplier tubes H01J 25/76) [1, 2006.01]
H01J 45/00
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Discharge tubes functioning as thermionic generators [1, 2006.01]
H01J 47/00
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Tubes for determining the presence, intensity, density or energy of radiation or particles (photoelectric discharge tubes not involving the ionisation of a gas H01J 40/00) [3, 2006.01]
H01J 49/00
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Particle spectrometers or separator tubes [3, 2006.01]
H01J 61/00
Discharge lamps
H01J 61/00
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Gas-discharge or vapour-discharge lamps (arc lamps with consumable electrodes H05B; electroluminescent lamps H05B) [1, 2006.01]
H01J 63/00
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Cathode-ray or electron-stream lamps [1, 2006.01]
H01J 65/00
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Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel [1, 2006.01]
H01J 99/00
H01J 99/00
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Subject matter not provided for in other groups of this subclass [2006.01]
H01K
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ELECTRIC INCANDESCENT LAMPS (details, apparatus or processes for manufacture applicable to both discharge devices and incandescent lamps H01J;  light sources using a combination of incandescent and other types of light generation H01J 61/96, H05B 35/00)
H01L
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SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 (use of semiconductor devices for measuring G01;  resistors in general H01C;  magnets, inductors or transformers H01F;  capacitors in general H01G;  electrolytic devices H01G 9/00;  batteries or accumulators H01M;  waveguides, resonators or lines of the waveguide type H01P;  line connectors or current collectors H01R;  stimulated-emission devices H01S;  electromechanical resonators H03H;  loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers H04R;  electric light sources in general H05B;  printed circuits, hybrid circuits, casings or constructional details of electrical apparatus, manufacture of assemblages of electrical components H05K;  use of semiconductor devices in circuits having a particular application, see the subclass for the application) [2]
H01M
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PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY [2]
H01P
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WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)
H01Q
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ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B 6/72)
H01R
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ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
H01S
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DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
H01T
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SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES (overvoltage protection circuits H02H)
H02
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GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H03
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ELECTRONIC CIRCUITRY
H04
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ELECTRIC COMMUNICATION TECHNIQUE
H05
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ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H10
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SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR [2023.01]
H99
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SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]

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