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Patent number:
Patent Date:
US Patent: 441,139
Journal-bearing for emery grinding-machines
Patentee:
George G. Crowell (
exact
or
similar
names) - Cincinnati, OH
USPTO Classifications:
384/215
,
451/361
Tool Categories:
metalworking machines
:
grinders
:
sharpening machines
:
bench or pedestal grinders
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Barton Griffith
John Fravel
Patent Dates:
Applied:
Sep. 26, 1889
Granted:
Nov. 25, 1890
Patent Pictures:
USPTO
(New site tip)
Google Patents
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