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US Patent: 1,516,443
Push screw driver
Patentee:
George O. Leopold (exact or similar names) - Philadelphia, PA

USPTO Classifications:
74/127, 81/63.2

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: Jan. 11, 1923
Granted: Nov. 18, 1924

Patent Pictures:
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