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US Patent: 324,121
Screw-driver
Screw holding screwdriver
Patentee:
George F. Kolb (exact or similar names) - Philadelphia, PA

USPTO Classifications:
81/453

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
None

Manufacturer:
Unknown

Witnesses:
John A. Wiedersheim
A. P. Grant
Patent Dates:
Applied: May 02, 1885
Granted: Aug. 11, 1885

Patent Pictures: [ 1 | 2 ]
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