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US Patent: 674,719
Screw-driver
Patentee: Gary Leroy Woodruff (exact or similar names) - Albany, NY USPTO Classifications: 74/127, 81/438 Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: B. F. Ritter William R. Moore	Patent Dates: Applied: Dec. 06, 1900 Granted: May 21, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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