Patent classifications
G
PHYSICS
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G10
MUSICAL INSTRUMENTS; ACOUSTICS
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G10G
REPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
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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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G10G3/04
using electrical means
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