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3499114
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Patent Grant
3499114
References
Source
Patent Number
3,499,114
Date Filed
Not available
Date Issued
Tuesday, March 3, 1970
54 years ago
CPC
G10H1/047 - by acousto-mechanical means
US Classifications
381 - Electrical audio signal processing systems and devices
084 - Music
181 - Acoustics
984 - Musical instruments
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