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US Patent: 2,190,967
Torque measuring wrench
Patentee:
Herman W. Zimmerman - Highland Park, IL

USPTO Classifications:
177/208, 73/862.21

Tool Categories:
wrenches : torque wrenches
specialty tools : automotive tools
trade specific : automobile mechanic

Assignees:
Automotive Maintenance Machinery Co. - Chicago, IL

Manufacturer:
Automotive Maintenance Machinery Co. - North Chicago, IL

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 06, 1937
Granted: Feb. 20, 1940

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Automotive Maintenance Machinery Co. (AMMCO)

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