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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:
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