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Frequency measuring apparatus
US 2,987,674 A
Filed
: 11/18/1957
Issued
: 06/06/1961
Est. Priority Date
: 11/18/1957
Status: Expired due to Term
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Current Assignee
Edwin Shain
Original Assignee
Edwin Shain
Inventors
Shain, Edwin
Application Number
US03/697,038
Time in Patent Office
1,296 Days
Field of Search
US Class Current
324/76.65
CPC Class Codes
G01R 23/02
Arrangements for measuring ...
G01R 23/10
by converting frequency int...
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