Patent classifications
G
PHYSICS
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G10
MUSICAL INSTRUMENTS; ACOUSTICS
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G10K
SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
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15/00
Acoustics not otherwise provided for
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G10K15/08
Arrangements for producing a reverberation or echo sound
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G10K15/12
using electronic time-delay networks
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