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US Patent: 2,436,528
Screw Thread Gauge
Patentees:
Louis F. Polk (exact or similar names) - Dayton, OH
Willis Fay Aller (exact or similar names) - Dayton, OH

USPTO Classifications:
33/199R

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

Assignees:
The Sheffield Corp. - Dayton, OH

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Nov. 10, 1844
Granted: Feb. 24, 1948

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
Edward T. Noe jr. - patent attorney

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