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Apparatus for testing electrically actuated indicating instruments
US 2,570,781 A
Filed
: 06/15/1945
Issued
: 10/09/1951
Est. Priority Date
: 06/15/1945
Status: Expired due to Term
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Current Assignee
Carl F. Duerr Jr
Original Assignee
Carl F. Duerr Jr
Inventors
Duerr, Carl F. Jr.
Application Number
US02/599,611
Time in Patent Office
2,307 Days
Field of Search
US Class Current
374/1
CPC Class Codes
G01K 7/34
using capacitative elements...
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