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US Patent: 232,869
Machine for Threading Screws
Patentee:
Samuel L. Worsley - Buffalo, NY

USPTO Classifications:
408/125, 408/69, 470/66

Tool Categories:
metalworking machines : metal threading machines

Assignees:
Plumb, Burdict and Barnard - Buffalo, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 01, 1879
Granted: Oct. 05, 1880

Patent Pictures:
USPTO pdf tiff
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