Title:
Push-pull electrostatic sound reproducer
United States Patent 1764008


Inventors:
Crozier, William D.
Application Number:
US31472228A
Publication Date:
06/17/1930
Filing Date:
10/24/1928
Assignee:
UNITED REPRODUCERS PATENTS COR
Primary Class:
Other Classes:
381/116, 381/117
International Classes:
H03F3/32; H04R19/02
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