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Patent number:
Patent Date:
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:
USPTO
(New site tip)
Google Patents
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