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US Patent: 285,484
Screw-driver
Patentee: Micajah C. Henley (exact or similar names) - 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: William E Bell W T Dennis	Patent Dates: Applied: Jun. 30, 1883 Granted: Sep. 25, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin
Description: This is an early power screwdriver, powered by a lineshaft.

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