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US Patent: 160,015
Improvement in Devices for Cutting out Sheet-Metal Washers
Patentee:
Daniel Goodnow, Jr. - Boston, MA

USPTO Classifications:
408/189, 408/195

Tool Categories:
woodworking tools : hand drills : drill bits : washer cutters

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. Curtis
W. E. Boardman

Patent Dates:
Applied: Jan. 28, 1875
Granted: Feb. 23, 1875

Patent Pictures:
USPTO pdf tiff
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