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US Patent: 1,737,881
Change Gear Mechanism
Patentee: William F. Groene (exact or similar names) - Cincinnati, OH USPTO Classifications: 74/333, 74/342 Tool Categories: 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: Jan. 12, 1922 Granted: Dec. 03, 1929 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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