| IPC 7 English version |
| G10G-G10G00702 |
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| SECTION G – PHYSICS |
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| G 10 | MUSICAL INSTRUMENTS; ACOUSTICS |
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| G 10 G | AIDS FOR MUSIC (metronomes G04F 5/02; teaching music G09B 15/00) |
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1/ | 00 | Means for the representation of music |
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1/ | 02 | . | Chord or note indicators, fixed or adjustable, for keyboards or fingerboards |
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1/ | 04 | . | Transposing; Transcribing |
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3/ | 00 | Recording music in notation form, e.g. recording the mechanical operation of a musical instrument |
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3/ | 02 | . | using mechanical means only |
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3/ | 04 | . | using electrical means |
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5/ | 00 | Supports for musical instruments |
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7/ | 00 | Other auxiliary devices, e.g. separate holder for resin, strings, conductors' batons |
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7/ | 02 | . | Tuning forks or like devices |
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