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US Patent: 1,959,891
Bearing hone
Patentee:
Herman W. Zimmerman (exact or similar names) - North Chicago, IL

USPTO Classifications:
451/476

Tool Categories:
specialty tools : automotive tools
trade specific : vehicle repairer : vehicle mechanic : connecting rod and pin maintenance

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

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

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 03, 1930
Granted: May 22, 1934

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Automotive Maintenance Machinery Co. (AMMCO)
Description:
This tool is intended for honing piston wrist-pin bores.

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