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US Patent: 187,600
Improvement in Tool-Holders Combination Countersink, Screwdriver & Gimlet Bit
Patentee: George Collins (exact or similar names) - Fort Wayne, MI USPTO Classifications: 279/14, 408/117, 408/20, 408/239R, 408/35, 7/165, 7/168, 81/440 Tool Categories: woodworking tools : hand drills : drill bits : countersinks screwdrivers : screwdriver blades Assignees: None Manufacturer: Not known to have been produced Witnesses: H. F. Eberts Charles J. Hunt	Patent Dates: Applied: Aug. 31, 1876 Granted: Feb. 20, 1877 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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