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US Patent: 59,757
Improved Tool-Handle Double-Ratchet Tool-Handle
Patentee: Charles W. Bioren (exact or similar names) - Philadelphia, PA USPTO Classifications: 81/29 Tool Categories: screwdrivers : screwdriver mechanisms : ratcheting screwdrivers industrial tools : tool holders Assignees: None Manufacturer: Not known to have been produced Witnesses: J. B. Crosby F. Gould	Patent Dates: Granted: Nov. 20, 1866 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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