Title:
Method and apparatus for controlling feedback
United States Patent 3256391
US Patent References:
Loud-speaker circuits
- - 1519211

Equalizer
- - 2682037

Variable attenuation sharp notch filter
- - 3074026


Inventors:
Paul, Boner Charles
Publication Date:
06/14/1966
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Assignee:
Paul, Boner Charles
Primary Class:
381/93
International Classes:
H04R3/02