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ELECTROSTATIC ACOUSTIC TRANSDUCER
US 3,544,733 A
Filed
: 06/15/1967
Issued
: 12/01/1970
Est. Priority Date
: 06/15/1967
Status: Expired due to Term
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Current Assignee
Frederick W. Zachau
,
Robert S. Reylek
Original Assignee
Frederick W. Zachau
,
Robert S. Reylek
Inventors
Reylek, Robert S.
,
Zachau, Frederick W.
Application Number
US04/646,219
Time in Patent Office
1,265 Days
Field of Search
US Class Current
381/99
CPC Class Codes
H04R 19/00
Electrostatic transducers
H04R 19/02
Loudspeakers H04R19/01 take...
Y10T 29/49005
Acoustic transducer
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