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US Patent: 2,320,023
Torque measuring wrench
Patentee:
Herman W. Zimmerman (exact or similar names) - Highland Park, IL

USPTO Classifications:
73/862.23, 73/862.26

Tool Categories:
wrenches : torque wrenches
trade specific : vehicle repairer : vehicle mechanic
specialty tools : automotive tools

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

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

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 18, 1940
Granted: May 25, 1943

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
"Vintage Machinery" entry for Automotive Maintenance Machinery Co. (AMMCO)

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