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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: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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