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US Patent: 1,516,477
Lost Motion Means for Gear Hobbing Machines
Patentee: Joseph K. Schofield (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 409/18, 409/5, 464/57 Tool Categories: metalworking machines : gear making machines : gear hobbing machines Assignees: Pratt & Whitney Co. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 14, 1922 Granted: Nov. 18, 1924 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pratt, Whitney & Co.

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