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3878748
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Information
Patent Grant
3878748
References
Source
Patent Number
3,878,748
Date Filed
Not available
Date Issued
Tuesday, April 22, 1975
49 years ago
CPC
G10H3/24 - incorporating feed-back means
G10H2210/275 - Helmholtz resonance effect
Y10S84/10 - Feedback
US Classifications
084 - Music
381 - Electrical audio signal processing systems and devices
984 - Musical instruments
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