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US Patent: 492,693
Tool-driver
Patentee:
Thomas F. McLoughlin (exact or similar names) - Leavenworth, KS

USPTO Classifications:
74/127

Tool Categories:
screwdrivers : screwdriver mechanisms : spiral screwdrivers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
G. E. Sorrell
Henry Briggs
Patent Dates:
Applied: Mar. 11, 1892
Granted: Feb. 28, 1893

Patent Pictures:
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