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US Patent: 1,206,097
Screw holding screw driver
Patentee:
John C. Doubt (exact or similar names) - Seattle, WA

USPTO Classifications:
81/458

Tool Categories:
screwdrivers

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Eva W. Doubt
O. B. Root
Patent Dates:
Applied: Feb. 03, 1916
Granted: Nov. 28, 1916

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