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US Patent: 722,332
Bit-stock
Patentee: Ira E. Stump (exact or similar names) - Cleveland, OH USPTO Classifications: 74/127 Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: Edwin E. Crook - Cleveland, OH Manufacturer: Not known to have been produced Witnesses: John A. Bommhardt Lottie Newburn	Patent Dates: Applied: Apr. 14, 1902 Granted: Mar. 10, 1903 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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