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US Patent: 549,837
Drill-chuck
Patentee: David Weir (exact or similar names) - Hartford, CT USPTO Classifications: 279/61 Tool Categories: metalworking machines : drilling and boring : drill presses : drill press chucks woodworking machines : wood drilling and boring : drill presses : drill press chucks Assignees: None Manufacturer: Doebler Mfg. Co. - Middletown, CT Pratt & Weir Chuck Co. - Hartford, CT Witnesses: Willard Eddy Richard H. Mathes	Patent Dates: Applied: Jul. 05, 1895 Granted: Nov. 12, 1895 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Doebler Mfg. Co. Vintage Machinery entry for Pratt & Weir Chuck Co.

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