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US Patent: 105,812
Improvement in self-acting mules for spinning
Patentees:
Nathan W. Bancroft (exact or similar names) - Worcester, MA
Prentiss J. Kent (exact or similar names) - Worcester, MA

USPTO Classifications:
57/320

Tool Categories:

Assignees:
John G. Avery - Spencer, MA
J. Rich Kent - Spencer, MA
Nathan W. Bancroft - Worcester, MA
Prentiss J. Kent - Worcester, MA

Manufacturer:
Kent & Bancroft Mfg. Co. - Worcester, MA

Witnesses:
Nathan L. Bancroft
F. J. Blackmer

Patent Dates:
Granted: Jul. 26, 1870

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Vintage Machinery entry for W. F. Bancroft & Co.

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