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US Patent: 302,308
Screw driver
Countersink Screwdriver
Patentee:
Jotham S. Works (exact or similar names) - Abbot, ME

USPTO Classifications:
81/453

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
Charles Albert Shaw - Boston, MA

Manufacturer:
Unknown

Witnesses:
Samuel M. Shaw
Wm Weymouth
Patent Dates:
Applied: Oct. 19, 1883
Granted: Jul. 22, 1884

Patent Pictures: [ 1 | 2 ]
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Description:
One of these appeared in a Martin J. Donnelly auction.

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