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US Patent: 134,777
Screw Cutting Dies
Patentee:
William E. Ward (exact or similar names) - Port Chester, Westchester County, NY

USPTO Classifications:
408/186, 470/190, 470/83

Tool Categories:
metalworking tools : taps and dies

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jan. 14, 1873

Patent Pictures:
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