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US Patent: 491,687
Attachment for Screwdriver
Patentee:
John R. Quimby - Wilmington, Windham County, VT

USPTO Classifications:
81/457

Tool Categories:
screwdrivers : screwdriver mechanisms

Assignees:
Hosea Mann, Jr. - Wilmington, Windham County, VT

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 18, 1889
Granted: Feb. 14, 1893

Patent Pictures:
USPTO pdf tiff
Google Patents
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