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US Patent: 2,807,973
Apparatus for Manufacturing Crankshafts Automatically
Patentees: Walter R. Meyer, deceased (estate of) (exact or similar names) - Cincinnati, OH Walter H. Meyer, administrator (exact or similar names) - Cincinnati, OH Harold J. Siekmann (exact or similar names) - Cincinnati, OH USPTO Classifications: 29/33P, 29/6.01, 33/517, 33/549, 408/12, 408/2, 408/69, 74/596, 82/106, 82/124 Tool Categories: metalworking machines : metal lathes : crankshaft lathes metalworking machines : metalworking machine mechanisms Assignees: R. K. Le Blond Machine Tool Co. - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 17, 1955 Granted: Oct. 01, 1957 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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