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US Patent: 244,679
Machine for Threading Thrasher Cylinder Teeth
Patentee:
Hiram M. Smith (exact or similar names) - Richmond, Henrico County, VA

USPTO Classifications:
470/176, 470/74

Tool Categories:
metalworking machines : metal threading machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 25, 1880
Granted: Jul. 19, 1881

Patent Pictures:
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