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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:
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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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