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Patent number:
Patent Date:
US Patent: 768,441
Screw Driver
Screw Gripping Screwdriver
Patentee:
Thomas W. Fisher (
exact
or
similar
names) - Helena, MT
USPTO Classifications:
81/451
Tool Categories:
screwdrivers
:
screwdriver blades
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
George P. Reeves
George R. Metten
Patent Dates:
Applied:
Mar. 04, 1903
Granted:
Aug. 23, 1904
Patent Pictures:
USPTO
(New site tip)
Google Patents
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