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US Patent: 2,290,324
Method of machining crankshafts
Patentees: Harold J. Siekmann (exact or similar names) - Cincinnati, OH William F. Groene (exact or similar names) - Cincinnati, OH USPTO Classifications: 29/888.08 Tool Categories: metalworking machines : metal lathes : crankshaft lathes Assignees: R. K. LeBlond Machine Tool Co. - Cincinnati, OH Manufacturer: R. K. LeBlond Machine Tool Co. - Cincinnati, OH Witnesses: Unknown	Patent Dates: Applied: Jan. 06, 1941 Granted: Jul. 21, 1942 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for R. K. LeBlond Machine Tool Co.
Description: Accurate and rapid machining of a crankshaft for an eight-cylinder engine.

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