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US Patent: 166,490
Machine for Tapping Nuts
Patentee:
Samuel L. Worsley - Providence, RI

USPTO Classifications:
221/178, 408/67, 408/69, 470/167

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: Jun. 07, 1875
Granted: Aug. 10, 1875

Reissue Information:
Reissued as RE7,153 (May 30, 1876)

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

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