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US Patent: 385,791
Combined Bit, Countersink, and Screw-Driver
Patentee: Frederick B. Carpenter (exact or similar names) - Manistique, MI USPTO Classifications: 408/193, 408/199, 7/158, 7/165, 7/168, 81/440, 81/57.5 Tool Categories: combination tools woodworking tools : hand drills : drill bits : countersinks Assignees: None Manufacturer: Not known to have been produced Witnesses: I. S. Shippeny Ed. L. Clapp	Patent Dates: Applied: Mar. 21, 1888 Granted: Jul. 10, 1888 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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