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PIEZOELECTRIC TRANSDUCER ELEMENT
US 3,546,497 A
Filed
: 11/04/1968
Issued
: 12/08/1970
Est. Priority Date
: 11/08/1967
Status: Expired due to Term
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6
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1
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6 Citations
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Current Assignee
Plessey Overseas Limited
(Marconi Holdings Company Limited)
Original Assignee
Craster William
Inventors
CRASTER WILLIAM
Application Number
US04/772,992
Time in Patent Office
764 Days
Field of Search
US Class Current
310/330
CPC Class Codes
B06B 1/0666
used as a diaphragm
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