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US Patent: 277,066
Friction Clutch
Patentee: Gabriel Nicolas Schoenberg (exact or similar names) - Boulogne, Boulogne County, France USPTO Classifications: 192/107R, 192/107T Tool Categories: industrial machines : industrial machine mechanisms : industrial machine clutches Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 16, 1883 Granted: May 08, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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