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Electrical testing apparatus
US 3,059,215 A
Filed
: 10/02/1959
Issued
: 10/16/1962
Est. Priority Date
: 10/02/1959
Status: Expired due to Term
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Current Assignee
Walter Proskauer
Original Assignee
Walter Proskauer
Inventors
WALTER PROSKAUER
Application Number
US03/844,064
Time in Patent Office
1,110 Days
Field of Search
US Class Current
439/660
CPC Class Codes
G01R 31/25
Testing of vacuum tubes
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