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US Patent: 725,100
Speed-changing mechanism
Patentees: Richard Knight Le Blond (exact or similar names) - Cincinnati, OH William F. Groene (exact or similar names) - Cincinnati, OH USPTO Classifications: 74/348 Tool Categories: metalworking machines : metal lathes Assignees: R. K. LeBlond Machine Tool Co. - Cincinnati, OH Manufacturer: R. K. LeBlond Machine Tool Co. - Cincinnati, OH Witnesses: George T. Pritchard William Pahren	Patent Dates: Applied: Jan. 28, 1903 Granted: Apr. 14, 1903 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.

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