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US Patent: 1,057,101
Watch Screw-Driver
Patentee: Louis E. F. Watcher (exact or similar names) - Hartford, CT USPTO Classifications: 81/438 Tool Categories: screwdrivers : screwdriver blades trade specific : watchmaker Assignees: None Manufacturer: Not known to have been produced Witnesses: M. O. Wells Hermann F. Cuntz	Patent Dates: Applied: Apr. 28, 1908 Granted: Mar. 25, 1913 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin
Description: A screw driver with a renewable blade stored in the handle, similar to mechanical pencil.

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