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Patent number:
Patent Date:
US Patent: 403,739
Friction Clutch
Patentee:
Hilen C. Crowell (
exact
or
similar
names) - Erie, Erie County, PA
USPTO Classifications:
188/251A
,
192/107R
,
192/107T
,
192/75
Tool Categories:
industrial machines
:
industrial machine mechanisms
:
industrial machine clutches
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jun. 29, 1888
Granted:
May 21, 1889
Patent Pictures:
USPTO
(New site tip)
Google Patents
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