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Patent number:
Patent Date:
US Patent: 157,989
Improvement in sawing-machines
Patentee:
William W. Duffield (
exact
or
similar
names) - Huntington, PA
USPTO Classifications:
83/749
Tool Categories:
woodworking machines
:
reciprocating saws
trade specific
:
wheelwright
woodworking machines
:
human powered machines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
John Bell
Samuel C. Mills
Patent Dates:
Applied:
Dec. 05, 1874
Granted:
Dec. 22, 1874
Patent Pictures:
USPTO
(New site tip)
Google Patents
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