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US Patent: 246,933
Machine for Feeding Screw Blanks
Patentee:
Samuel L. Worsley - Buffalo, NY

USPTO Classifications:
221/172, 221/210, 221/238, 221/239

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: Aug. 09, 1880
Granted: Sep. 13, 1881

Patent Pictures:
USPTO pdf tiff
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