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Patent number:
Patent Date:
US Patent: 70,923
Improvement in Screw-Drivers
Patentee:
T. D. Vorhees (
exact
or
similar
names) - Easton, PA
USPTO Classifications:
16/431
,
43/23
,
81/177.1
,
81/436
Tool Categories:
screwdrivers
:
screwdriver mechanisms
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
William F. McNamara
Alex. F. Roberts
Patent Dates:
Granted:
Nov. 12, 1867
Patent Pictures:
USPTO
(New site tip)
Google Patents
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