Loudspeaker system
United States Patent 3138667
US Patent References:
Loud speaker system
- - 2632055


Inventors:
Avedon, Robert C.
Publication Date:
06/23/1964
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Assignee:
Electro, Voice
Primary Class:
381/335
Other Classes:
381/86, 181/147
International Classes:
H04R1/40