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US Patent: 2,138,964
Orbital lathe
Patentee: William F. Groene (exact or similar names) - Cincinnati, OH USPTO Classifications: 66/178R, 82/106, 82/144 Tool Categories: metalworking machines : metal lathes : crank pin lathes metalworking machines : metal lathes : multiple spindle 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. 26, 1937 Granted: Dec. 06, 1938 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: Improvements and modifications to the crankshaft crank-pin lathe of patent 1,934,530 to perform more operations at once.

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