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US Patent: 2,258,760
Thread Gauge
Patentee:
Carl Hecker (exact or similar names) - Flint, MI

USPTO Classifications:
33/199R

Tool Categories:
metalworking tools : machinist tools : measuring tools : thread gages
layout tools : measurement gauges

Assignees:
General Motors Corp. - Detroit, MI

Manufacturer:
Not known to have been produced

Witnesses:
none listed
Patent Dates:
Applied: Jun. 16, 1939
Granted: Oct. 14, 1941

Patent Pictures:
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Description:
Blakemore, Spencer & Flint - patent attorneys

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