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US Patent: 1,645,753
Tool
Screw holding screwdriver
Patentee:
Edward Hanson (exact or similar names) - Cleveland, OH

USPTO Classifications:
81/457

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 15, 1925
Granted: Oct. 18, 1927

Patent Pictures: [ 1 | 2 ]
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