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US Patent: 666,511
Supplementary Drill Chuck
Patentee:
Zachry T. Furbish - Philadelphia, PA

USPTO Classifications:
279/81

Tool Categories:
woodworking tools : hand drills : drill chucks

Assignees:
North Brothers Manufacturing Co. - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
Will. A. Barr
Jos. H. Klein

Patent Dates:
Applied: Apr. 11, 1900
Granted: Jan. 22, 1901

Patent Pictures:
USPTO pdf tiff
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