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Patent number:
Patent Date:
US Patent: 1,415,822
Screw driver
Patentees:
Thomas J. Fegley (
exact
or
similar
names) - Philadelphia, PA
Walter S. Snyder (
exact
or
similar
names) - Philadelphia, PA
USPTO Classifications:
74/127
Tool Categories:
screwdrivers
:
screwdriver mechanisms
:
spiral screwdrivers
Assignees:
North Brothers Manufacturing Co.
- Philadelphia, PA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
May 22, 1920
Granted:
May 09, 1922
Patent Pictures:
USPTO
(New site tip)
Google Patents
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