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US Patent: 79
Wood-screw-threading machine, &c.
Patentee:
Henry Crum - Clarkstown, NY

USPTO Classifications:
408/148, 408/1R, 408/71

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John S. Welling
Anthony Houston

Patent Dates:
Granted: Nov. 14, 1836

Patent Pictures:
USPTO pdf tiff
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