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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)
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