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US Patent: 691,488
Friction-clutch
Friction-clutch for counter-shafts
Patentee:
Corneil Ridderhof (exact or similar names) - Grand Rapids, MI

USPTO Classifications:
192/75, 192/94

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine pulleys and belt drive mechanisms : friction clutches

Assignees:
Wilmarth & Morman Co. - Grand Rapids, MI

Manufacturer:
Not known to have been produced

Witnesses:
Lewis T. Wilmarth
John Moran

Patent Dates:
Applied: Mar. 13, 1901
Granted: Jan. 21, 1902

Patent Pictures:
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