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Symbol IPC-Stellen auswählen Titel
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONSTRANSPORTING
C
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CHEMISTRYMETALLURGY
D
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TEXTILESPAPER
E
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FIXED CONSTRUCTIONS
F
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MECHANICAL ENGINEERINGLIGHTINGHEATINGWEAPONSBLASTING
G
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PHYSICS
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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COMPUTINGCALCULATING OR COUNTING
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
G10B
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ORGANS, HARMONIUMS OR SIMILAR WIND MUSICAL INSTRUMENTS WITH ASSOCIATED BLOWING APPARATUS (accordions, concertinas or the like or keyboards therefor G10D 11/00;  automatic wind instruments G10F 1/12)
G10C
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PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS (automatic musical instruments G10F)
G10D
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STRINGED MUSICAL INSTRUMENTSWIND MUSICAL INSTRUMENTSACCORDIONS OR CONCERTINASPERCUSSION MUSICAL INSTRUMENTSAEOLIAN HARPS SINGING-FLAME MUSICAL INSTRUMENTSMUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR (organs, harmoniums or similar wind musical instruments with associated blowing apparatus G10B;  pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards G10C;  automatic musical instruments G10F;  electrophonic musical instruments in which tones are generated by electromechanical means G10H)
G10F
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AUTOMATIC MUSICAL INSTRUMENTS (non-musical aspects of musical toy instruments A63H 5/00; arrangements for the associated working of recording or reproducing apparatus with automatic musical instruments G11B 31/02)
G10G
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REPRESENTATION OF MUSICRECORDING MUSIC IN NOTATION FORMACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS (music stands A47B; non-musical aspects of musical toy instruments A63H 5/00; metronomes G04F 5/02; teaching music G09B 15/00)
G10H
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ELECTROPHONIC MUSICAL INSTRUMENTSINSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
G10H 1/00
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Details of electrophonic musical instruments [1, 5, 2006.01]
G10H 3/00
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Instruments in which the tones are generated by electromechanical means [1, 2006.01]
G10H 5/00
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Instruments in which the tones are generated by means of electronic generators (G10H 7/00 takes precedence) [1, 3, 2006.01]
G10H 7/00
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Instruments in which the tones are synthesised from a data store, e.g. computer organs [3, 5, 2006.01]
G10H 7/02
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in which amplitudes at successive sample points of a tone waveform are stored in one or more memories [5, 2006.01]
G10H 7/04
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. . in which amplitudes are read at varying rates, e.g. according to pitch [5, 2006.01]
G10H 7/06
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. . in which amplitudes are read at a fixed rate, the read-out address varying stepwise by a given value, e.g. according to pitch [5, 2006.01]
G10H 7/08
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by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform [5, 2006.01]
G10H 7/10
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. . using coefficients or parameters stored in a memory, e.g. Fourier coefficients (G10H 7/12 takes precedence) [5, 2006.01]
G10H 7/12
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. . by means of a recursive algorithm using one or more sets of parameters stored in a memory and the calculated amplitudes of one or more preceding sample points [5, 2006.01]
G10K
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SOUND-PRODUCING DEVICESMETHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERALACOUSTICS NOT OTHERWISE PROVIDED FOR [6]
G10L
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SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESISSPEECH RECOGNITIONSPEECH OR VOICE PROCESSING TECHNIQUESSPEECH OR AUDIO CODING OR DECODING [4]
G11
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INFORMATION STORAGE
G12
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INSTRUMENT DETAILS
G16
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INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS [2018.01]
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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ELECTRICITY

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