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US Patent: 2,308,011
Lead Tester for Screw Threads
Patentee:
Stanley G. Johnson - Hartford, CT

USPTO Classifications:
33/199R

Tool Categories:
layout tools : measurement gauges

Assignees:
Niles-Bement-Pond Co. - West Hartford, CT

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: May 10, 1941
Granted: Jan. 12, 1943

Patent Pictures:
USPTO pdf tiff
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Description:
Joseph K. Schofield - patent attorney

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