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US Patent: 2,665,126
Crankshaft Pin Hardening Machine
Patentee: Erwin G. Roehm (exact or similar names) - Norwood, Hamilton County, OH USPTO Classifications: 266/121, 266/125, 266/129, 266/132, 266/133, 266/87, 266/90 Tool Categories: specialty machines : flame hardening machines Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 22, 1953 Granted: Jan. 05, 1954 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Cincinnati Milling Machine Co.

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