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US Patent: 35,337
Screw Driver
Patentee:
Julius Thompson - Taunton, MA

USPTO Classifications:
2/152.1, 24/56, 404/115, 81/436

Tool Categories:
screwdrivers
screwdrivers : screwdriver handles

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edmund H. Bennett
Henry F. Cobb
H. B. King
M. C. Dean

Patent Dates:
Granted: May 20, 1862

Patent Pictures:
Julius Thompson Pat. May 20, 1862
USPTO pdf tiff
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Description:
The patented feature is an arm that fits along side the screwdriver shank and which can be folded out to provide extra leverage for hard-driving screws.

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