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Speaker diaphragm controlled capacitor for negative feedback control
US 2,857,461 A
Filed
: 09/03/1954
Issued
: 10/21/1958
Est. Priority Date
: 09/03/1954
Status: Expired due to Term
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Current Assignee
George H. Brodie
Original Assignee
George H. Brodie
Inventors
Brodie, George H.
Application Number
US03/454,061
Time in Patent Office
1,509 Days
Field of Search
US Class Current
381/96
CPC Class Codes
H03F 1/36
in discharge-tube amplifiers
H04R 3/002
Damping circuit arrangement...
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