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US Patent: 973,881
Spiral tool-driver
Patentee: David Rioux (exact or similar names) - Springfield, MA USPTO Classifications: 74/127 Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: William S. Bellows D. J. Rioux	Patent Dates: Applied: Jul. 19, 1910 Granted: Oct. 25, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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