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US Patent: 627,480
Drill Chuck
Patentee: John W. Carleton (exact or similar names) - New Britain, Hartford County, CT USPTO Classifications: 279/68 Tool Categories: metalworking machines : drilling and boring : drill presses : drill press chucks Assignees: Union Manufacturing Co. - New Britain, Hartford County, CT Manufacturer: Not known to have been produced Witnesses: James Shepard A. W. Stipek	Patent Dates: Applied: Apr. 18, 1899 Granted: Jun. 27, 1899 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Union Manufacturing Co.

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