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Patent number:
Patent Date:
US Patent: 521,646
Grinding-machine
Patentee:
Rufus Dutton (
exact
or
similar
names) - Yonkers, NY
USPTO Classifications:
451/241
Tool Categories:
metalworking machines
:
grinders
:
sharpening machines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Andrew J. Tracy
W. S. Holbrook
Patent Dates:
Applied:
Sep. 22, 1888
Granted:
Jun. 19, 1894
Patent Pictures:
USPTO
(New site tip)
Google Patents
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