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US Patent: 484,004
Screw-driver
Patentees: John H. Parsons (exact or similar names) - Augusta, ME George E. Gay (exact or similar names) - Augusta, ME USPTO Classifications: 74/127 Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: Elijah Hayward Harry W. Golder	Patent Dates: Applied: Nov. 16, 1891 Granted: Oct. 11, 1892 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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