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US Patent: 1,522,720
Cylinder-grinding tool
Patentee: Horace C. Heon (exact or similar names) - Chicago, IL USPTO Classifications: 451/484 Tool Categories: 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: Nov. 19, 1923 Granted: Jan. 13, 1925 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)
Description: See also patent 1,774,711.

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