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US Patent: 303,003
Screw Driver
Screw holding screwdriver
Patentee:
George W. Hael (exact or similar names) - Minneapolis, MN

USPTO Classifications:
81/454

Tool Categories:
screwdrivers : screwdriver blades
specialty tools : screw starters

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Howe Paige
Robert C. Kauckluff

Patent Dates:
Applied: Apr. 23, 1884
Granted: Aug. 05, 1884

Patent Pictures: [ 1 | 2 | 3 | 4 | 5 ]
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Description:
This Patent is for a screw holding spring as well as removeable screw driver blade so it could be replaced or sharpened. Sample is marked with Patent date but more resembles Hael's October 1884 patent 306394.

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