Title:
Sound reproducing system
United States Patent 2143175
Inventors:
Waite, Samuel A.
Publication Date:
01/10/1939
Export Citation:
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Assignee:
Waite, Samuel A.
Primary Class:
381/308
Other Classes:
181/30, 381/117, 381/186, 381/342
International Classes:
H04R1/26; H04R1/22
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