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US Patent: 70,862
Improved nut-tapping machines
Patentee:
James Kirkley - Chicago, IL

USPTO Classifications:
29/DIG.79, 29/DIG.93, 470/99

Tool Categories:
specialty machines : nut or bolt making machines

Assignees:
None

Manufacturer:
Putnam Machine Co. - Fitchburg, MA

Witnesses:
W. F. Whitehouse
A. N. Tonne

Patent Dates:
Granted: Nov. 12, 1867

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Putnam Machine Co.
Description:
In patent 142,511, S. W. Putnam, Jr., made improvements to this patent, from which we infer that Putnam Machine Co. licensed this patent.

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