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US Patent: RE7,153
Machine for Tapping Screw Nuts
Patentee:
Samuel L. Worsley - Providence, RI

USPTO Classifications:
408/69

Tool Categories:
specialty machines : nut making machines
metalworking machines : metal threading machines

Assignees:
American Screw Co. - Providence, RI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 01, 1876
Granted: May 30, 1876

Reissue Information:
Reissue of 166,490 (Aug. 10, 1875)

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for American Screw Co.

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