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Subminiature portable crystal radio receiver
US 2,805,332 A
Filed
: 01/20/1955
Issued
: 09/03/1957
Est. Priority Date
: 01/20/1955
Status: Expired due to Term
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Current Assignee
Keith L. Bell
Original Assignee
Keith L. Bell
Inventors
Bell, Keith L.
Application Number
US03/483,103
Time in Patent Office
957 Days
Field of Search
US Class Current
455/351
CPC Class Codes
H04B 1/088
with parts of the receiver ...
H04R 9/047
in which the windings of th...
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