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Changeable scale electrical testing instrument
US 2,514,745 A
Filed
: 12/19/1946
Issued
: 07/11/1950
Est. Priority Date
: 12/19/1946
Status: Expired due to Term
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Current Assignee
Clarence W. Dalzell
Original Assignee
Clarence W. Dalzell
Inventors
Dalzell, Clarence W.
Application Number
US02/717,119
Time in Patent Office
1,300 Days
Field of Search
US Class Current
324/115
CPC Class Codes
G01R 31/3646
for indicating electrical c...
G01R 31/385
Arrangements for measuring ...
Y10S 116/41
Color comparison
Y10S 116/46
Interchangeable scales
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