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Electronic sound transmitting device
US 2,950,357 A
Filed
: 05/01/1956
Issued
: 08/23/1960
Est. Priority Date
: 05/01/1956
Status: Expired due to Term
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29
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Current Assignee
Robert E. Mitchell
,
Stanley K. Webster
Original Assignee
Robert E. Mitchell
,
Stanley K. Webster
Inventors
Mitchell, Robert E.
,
Webster, Stanley K.
Application Number
US03/581,873
Time in Patent Office
1,575 Days
Field of Search
US Class Current
381/323
CPC Class Codes
H04R 25/554
using a wireless connection...
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