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US 2,657,758 A
Filed
: 03/24/1950
Issued
: 11/03/1953
Est. Priority Date
: 03/31/1949
Status: Expired due to Term
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Current Assignee
Pierre Varnet
Original Assignee
Pierre Varnet
Inventors
PIERRE VARNET
Application Number
US03/151,724
Time in Patent Office
1,320 Days
Field of Search
US Class Current
181/164
CPC Class Codes
H04R 9/045
Mounting H04R9/043 takes pr...
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