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US Patent: RE20,090
Double Center Drive Crank Shaft Lathe
Patentee: William F. Groene (exact or similar names) - Cincinnati, OH USPTO Classifications: 82/106 Tool Categories: metalworking machines : metal lathes : crankshaft lathes Assignees: R. K. Le Blond Machine Tool Co. - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 02, 1936 Granted: Sep. 01, 1936 Reissue Information: Reissue of 1,843,359 (Feb. 02, 1932) Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for R. K. Leblond Machine Tool Co.

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