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US Patent: 72,463
Improvement in Screwdrivers
Patentee:
Otis Dean - Richmond, VA

USPTO Classifications:
81/177.4

Tool Categories:
screwdrivers

Assignees:
R. W. Young - Richmond, VA

Manufacturer:
Not known to have been produced

Witnesses:
T. W. Young
E. A. J. Clopton

Patent Dates:
Applied: Sep. 16, 1867
Granted: Dec. 24, 1867

Patent Pictures:
USPTO pdf tiff
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Description:
Adjustable length blade.

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