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US Patent: 1,774,711
Cylinder-grinding tool
Patentee:
Horace C. Heon - Chicago, IL

USPTO Classifications:
451/484

Tool Categories:
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. 03, 1927
Granted: Sep. 02, 1930

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Automotive Maintenance Machinery Co. (AMMCO)
Description:
Improvements to patent 1,522,720.

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