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US Patent: 285,484
Screw-driver
Patentee:
Micajah C. Henley - Richmond, IN

USPTO Classifications:
144/103, 74/386, 81/57.4

Tool Categories:
screwdrivers : screwdriver mechanisms

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 30, 1883
Granted: Sep. 25, 1883

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
This is an early power screwdriver, powered by a lineshaft.

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