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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
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Description:
A screw driver with a renewable blade stored in the handle, similar to mechanical pencil.

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