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A
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SECTION A — HUMAN NECESSITIES
B
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SECTION B — PERFORMING OPERATIONSTRANSPORTING
C
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SECTION C — CHEMISTRYMETALLURGY
D
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SECTION D — TEXTILESPAPER
E
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SECTION E — FIXED CONSTRUCTIONS
F
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SECTION F — MECHANICAL ENGINEERINGLIGHTINGHEATINGWEAPONSBLASTING
G
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SECTION G — PHYSICS
H
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SECTION H — ELECTRICITY
H01
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BASIC ELECTRIC ELEMENTS
H02
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GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H03
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BASIC ELECTRONIC CIRCUITRY
H04
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ELECTRIC COMMUNICATION TECHNIQUE
H05
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ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B
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ELECTRIC HEATINGELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR (apparatus for special application, see the relevant places, e.g. A47J, B21J, B21K, C21, C22, C23, F21, F24, F27)
H05C
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ELECTRIC CIRCUITS OR APPARATUS SPECIALLY DESIGNED FOR USE IN EQUIPMENT FOR KILLING, STUNNING, ENCLOSING OR GUIDING LIVING BEINGS (stationary means for catching or killing insects by electric means A01M 1/22; apparatus for the destruction of noxious animals, other than insects, by electricity A01M 19/00; electric traps for animals A01M 23/38; scaring devices for animals A01M 29/00; slaughtering or stunning by electric current A22B 3/06)
H05F
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STATIC ELECTRICITYNATURALLY-OCCURRING ELECTRICITY (electrostatic machines H02N; uses of electricity in performing operations, e.g. precipitation, see the relevant subclasses for the operations)
H05G
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X-RAY TECHNIQUE (apparatus for radiation diagnosis A61B 6/00; X-ray therapy A61N; testing by X-rays G01N; apparatus for X-ray photography G03B; filters, conversion screens, microscopes G21K; X-ray tubes H01J 35/00; TV systems having X-ray input H04N 5/321)
H05G 1/00
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X-ray apparatus involving X-ray tubesCircuits therefor
H05G 1/02
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Constructional details
H05G 1/04
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. . Mounting the X-ray tube within a closed housing
H05G 1/06
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. . . X-ray tube and at least part of the power supply apparatus being mounted within the same housing
H05G 1/08
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Electrical details
H05G 1/10
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. . Power supply arrangements for feeding the X-ray tube
H05G 1/12
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. . . with dc or rectified single-phase ac
H05G 1/14
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. . . with single-phase low-frequency ac
H05G 1/16
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. . . . Reducing the peak-inverse voltage
H05G 1/18
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. . . with polyphase ac of low frequency
H05G 1/20
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. . . with high-frequency acwith pulse trains
H05G 1/22
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. . . with single pulses
H05G 1/24
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. . . . Obtaining pulses by using energy storage devices (pulse generators H03K)
H05G 1/26
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. . Measuring, controlling, protecting (measuring electric values G01R; measuring X-ray intensity G01T)
H05G 1/28
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. . . Measuring or recording actual exposure timeCounting number of exposuresMeasuring required exposure time
H05G 1/30
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. . . Controlling
H05G 1/32
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. . . . Supply voltage of the X-ray apparatus or tube (regulating supply without reference to operating characteristics of the apparatus G05F)
H05G 1/34
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. . . . Anode current, heater current, heater voltage of X-ray tube (regulating supply without reference to operating characteristics of the apparatus G05F)
H05G 1/36
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. . . . Temperature of anodeBrightness of image
H05G 1/38
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. . . . Exposure time
H05G 1/40
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. . . . . using adjustable time switch
H05G 1/42
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. . . . . using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube
H05G 1/44
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. . . . . . in which the switching instant is determined by measuring the amount of radiation directly
H05G 1/46
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. . . . Combined control of different quantities, e.g. exposure time as well as voltage or current
H05G 1/48
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. . . . Compensating the voltage drop occurring at the instant of switching-on of the apparatus (regulating supply without reference to operating characteristics of the apparatus G05F)
H05G 1/50
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. . . . Passing the tube current only during a restricted portion of the voltage waveform
H05G 1/52
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. . . . Target size or shapeDirection of electron beam, e.g. in tubes with one anode and more than one cathode
H05G 1/54
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. . . Protecting (overload protection combined with control H05G 1/46)
H05G 1/56
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. . Switching-onSwitching-off
H05G 1/58
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. . Switching arrangements for changing-over from one mode of operation to another, e.g. from radioscopy to radiography, from radioscopy to irradiation
H05G 1/60
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. . Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography
H05G 1/61
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. . . for obtaining stereoscopic photographs [5]
H05G 1/62
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. . Circuit arrangements for obtaining X-ray photography at predetermined instants in the movement of an object, e.g. X-ray stroboscopy
H05G 1/64
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. . Circuit arrangements for X-ray apparatus incorporating electronic image converters, e.g. image intensifiers [5]
H05G 1/66
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. . Circuit arrangements for X-ray tubes with target movable relatively to the anode
H05G 1/68
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. . Circuit arrangements for Lilienfeld tubesCircuit arrangements for gas-filled X-ray tubes
H05G 1/70
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. . Circuit arrangements for X-ray tubes with more than one anodeCircuit arrangements for apparatus comprising more than one X-ray tube
H05G 2/00
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Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma (X-ray lasers H01S 4/00; plasma technique in general H05H) [5]
H05H
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PLASMA TECHNIQUE (ion-beam tubes H01J 27/00; magnetohydrodynamic generators H02K 44/08; producing X-rays involving plasma generation H05G 2/00)PRODUCTION OF ACCELERATED ELECTRICALLY- CHARGED PARTICLES OR OF NEUTRONS (obtaining neutrons from radioactive sources G21, e.g. G21B, G21C, G21G)PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS (atomic clocks G04F 5/14; devices using stimulated emission H01S; frequency regulation by comparison with a reference frequency determined by energy levels of molecules, atoms, or subatomic particles H03L 7/26)
H05K
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PRINTED CIRCUITSCASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUSMANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS (details of instruments or comparable details of other apparatus not otherwise provided for G12B; thin-film or thick-film circuits H01L 27/01, H01L 27/13; non-printed means for electric connections to or between printed circuits H01R; casings for, or constructional details of, particular types of apparatus, see the relevant subclasses; processes involving only a single technical art, e.g. heating, spraying, for which provision exists elsewhere, see the relevant classes)
H99
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SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]

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