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US Patent: 1,172
Improvement in Machines for Cutting Screws in Wood for Framing Purposes
Patentee:
Samuel H. Wills - Abingdon, VA

USPTO Classifications:
408/1R, 408/37, 470/59, 470/9

Tool Categories:
woodworking machines : specialty machines : wood threading machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. J. Wallis
Charles J. Cummings

Patent Dates:
Granted: Jun. 18, 1839

Patent Pictures: [ 1 | 2 ]
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