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US Patent: 1,925,709
Cylinder grinding tool
Patentee:
Herman W. Zimmerman (exact or similar names) - Chicago, IL

USPTO Classifications:
451/475, 451/476

Tool Categories:
specialty tools : automotive tools
trade specific : vehicle repairer : vehicle mechanic : cylinder maintenance

Assignees:
Automotive Maintenance Machinery Co. - Chicago, IL

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

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 12, 1930
Granted: Sep. 05, 1933

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

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