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US Patent: 857,562
Speed Changing Device
Patentees: Richard K. Le Blond (exact or similar names) - Cincinnati, OH William F. Groene (exact or similar names) - Cincinnati, OH USPTO Classifications: 74/333 Tool Categories: metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 08, 1905 Granted: Jun. 18, 1907 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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