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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
G01
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INSTRUMENTS
G01
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MEASURINGTESTING
G02
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OPTICS
G03
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PHOTOGRAPHYCINEMATOGRAPHYANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVESELECTROGRAPHYHOLOGRAPHY [4]
G04
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HOROLOGY
G05
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CONTROLLINGREGULATING
G06
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COMPUTINGCALCULATINGCOUNTING
G07
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CHECKING-DEVICES
G08
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SIGNALLING
G09
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EDUCATINGCRYPTOGRAPHYDISPLAYADVERTISINGSEALS
G10
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MUSICAL INSTRUMENTSACOUSTICS
G11
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INFORMATION STORAGE
G11B
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INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D 9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K 1/18;  circuits for coupling output of reproducer to radio receiver H04B 1/20;  gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)
G11B 3/00
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Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pitsReproducing by mechanical sensingRecord carriers therefor (G11B 11/00 takes precedence)
G11B 5/00
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Recording by magnetisation or demagnetisation of a record carrierReproducing by magnetic meansRecord carriers therefor (G11B 11/00 takes precedence) [4]
G11B 7/00
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Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower powerRecord carriers therefor (G11B 11/00, G11B 13/00 take precedence) [4, 7]
G11B 9/00
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Recording or reproducing using a method or means not covered by one of the main groups G11B 3/00-G11B 7/00Record carriers therefor (G11B 11/00 takes precedence) [4]
G11B 11/00
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Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups G11B 3/00-G11B 7/00 or by different subgroups of group G11B 9/00Record carriers therefor
G11B 13/00
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Recording simultaneously or selectively by methods or means covered by different main groupsRecord carriers thereforReproducing simultaneously or selectively therefrom [1, 7]
G11B 15/00
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Driving, starting or stopping record carriers of filamentary or web formDriving both such record carriers and headsGuiding such record carriers or containers thereforControl thereofControl of operating function (driving or guiding heads G11B 3/00-G11B 7/00, G11B 21/00) [2]
G11B 17/00
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Guiding record carriers not specifically of filamentary or web form, or of supports therefor (guiding cards or sheets G06K 13/00)
G11B 19/00
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Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports thereforControl thereofControl of operating function
G11B 20/00
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Signal processing not specific to the method of recording or reproducingCircuits therefor [4]
G11B 21/00
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Head arrangements not specific to the method of recording or reproducing
G11B 23/00
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Record carriers not specific to the method of recording or reproducingAccessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus [4]
G11B 23/02
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ContainersStoring means (cabinets, cases, stands, modified to store record carriers G11B 33/04) [4]
G11B 23/023
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. . Containers for magazines or cassettes [4]
G11B 23/027
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. . Containers for single reels or spools [4]
G11B 23/03
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. . Containers for flat record carriers [4]
G11B 23/033
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. . . for flexible discs [4]
G11B 23/037
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. . Single reels or spools [4]
G11B 23/04
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. . MagazinesCassettes (G11B 23/12 takes precedence)
G11B 23/06
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. . . for housing endless webs or filaments
G11B 23/07
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. . . . using a single reel or core [4]
G11B 23/08
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. . . for housing webs or filaments having two distinct ends
G11B 23/087
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. . . . using two different reels or cores [4]
G11B 23/093
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. . . . . the reels or cores being coaxial [4]
G11B 23/107
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. . . . using one reel or core, one end of the record carrier coming out of the magazine or cassette [4]
G11B 23/113
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. . Apparatus or processes specially adapted for the manufacture of magazines or cassettes [4]
G11B 23/12
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. . Bins for random storage of webs or filaments
G11B 23/14
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providing ability to repeat location, e.g. using sprocket holes
G11B 23/16
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Record carriers with single track for recording at spaced intervals along the track thereof, e.g. for speech or language training
G11B 23/18
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Record carriers with multiple tracks, e.g. with complementary and partial tracks such as paired "stereo" tracks
G11B 23/20
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with provision for splicing to provide permanent or temporary connections
G11B 23/22
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. . of endless beltsof tapes forming Möbius loops
G11B 23/24
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. . of tapes having multiple tracks parallel to edge of record carrier by offset splicing to form endless loop with one or more helical tracks
G11B 23/26
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. . of leaders for loading or threading, e.g. to form a temporary connection
G11B 23/28
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indicating prior or unauthorised use
G11B 23/30
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with provision for auxiliary signals
G11B 23/32
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. . Electrical or mechanical contacting meansTape stop foils
G11B 23/34
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. . Signal means additional to the main recording track, e.g. photoelectric sensing of sprocket holes for timing
G11B 23/36
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. . Signals on record carriers or on containers and recorded by the same method as the main recording
G11B 23/38
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Visual features other than those contained in record tracks or represented by sprocket holes
G11B 23/40
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. . Identifying or analogous means applied to, or incorporated in, the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader or photograph
G11B 23/42
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. . Marks for indexing, speed-controlling, synchronising, or timing
G11B 23/44
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. . Information for display simultaneously with playback of the record, e.g. photographic matter (associated working of cameras or projectors with sound-recording or -reproducing means G03B 31/00) [4]
G11B 23/50
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Reconditioning of record carriersCleaning of record carriers (G11B 3/58 takes precedence) [2]
G11B 25/00
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Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing [4]
G11B 27/00
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EditingIndexingAddressingTiming or synchronisingMonitoringMeasuring tape travel [2, 4]
G11B 31/00
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Arrangements for the associated working of recording or reproducing apparatus with related apparatus (with cameras or projectors G03B 31/00) [1, 7]
G11B 33/00
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Constructional parts, details or accessories not provided for in the other groups of this subclass [4]
G11C
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STATIC STORES (information storage based on relative movement between record carrier and transducer G11B; semiconductor devices for storage H01L, e.g. H01L 27/108-H01L 27/115; pulse technique in general H03K, e.g. electronic switches H03K 17/00)
G12
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INSTRUMENT DETAILS
G21
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NUCLEONICS
G21
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NUCLEAR PHYSICSNUCLEAR ENGINEERING
G99
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SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
H
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SECTION H — ELECTRICITY

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