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US Patent: 265,976
Machine for Forming Teeth Upon File-Blanks
Patentee:
Wiliam T. Nicholson - Providence, RI

USPTO Classifications:
409/304, 451/163, 451/164, 451/403, 74/817, 76/14

Tool Categories:
woodworking machines : specialty machines : tool making machines
metalworking tools : files

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. H. Thurston
I. Knight

Patent Dates:
Applied: Mar. 03, 1882
Granted: Oct. 17, 1882

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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Description:
This apparatus is intended to allow the file making process patented by Nicholson the same day (265975) to be carried out by less skilled workmen.

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