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US Patent: 157,700
Machines for Threading Bolts
Patentee:
Coleman Sellers (exact or similar names) - Philadelphia, PA

USPTO Classifications:
29/DIG.101, 29/DIG.102, 29/DIG.55, 29/DIG.68, 29/DIG.91, 408/15, 408/56, 408/68, 470/76

Tool Categories:

Assignees:
William Sellers - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 08, 1874
Granted: Dec. 15, 1874

Patent Pictures:
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