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US Patent: 2,156,153
Multiple Spindle Vertical Crankshaft Lathe
Patentees: William F. Groene (exact or similar names) - Cincinnati, OH Harold J. Siekmann (exact or similar names) - Cincinnati, OH Walter R. Meyer (exact or similar names) - Cincinnati, OH USPTO Classifications: 29/38E, 29/DIG.77, 82/106, 82/901 Tool Categories: metalworking machines : metal lathes : crankshaft lathes metalworking machines : metal lathes : multiple spindle lathes Assignees: R. K. Le Blond Machine Tool Co. - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 08, 1937 Granted: Apr. 25, 1939 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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