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Patent number:
Patent Date:
US Patent: 215,898
Improvement in mills for sawing shingle-bolts
Patentee:
John Du Bois (
exact
or
similar
names) - Williamsport, PA
USPTO Classifications:
83/417
,
83/421
Tool Categories:
woodworking machines
:
specialty woodworking machines
:
shingle machines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Mar. 15, 1879
Granted:
May 27, 1879
Patent Pictures:
USPTO
(New site tip)
Google Patents
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