Title:
Method of making alpha voice coil
United States Patent 1956826

Inventors:
Engholm, Bernard A.
Publication Date:
05/01/1934
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Assignee:
ROLA COMPANY
Primary Class:
29/605
Other Classes:
336/205, 336/192, 29/602.100, 336/208, 381/400, 336/222
International Classes:
H04R9/04; H04R9/00