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US Patent: 407,748
Friction Clutch
Patentee: William B. Tatro (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 192/78 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine pulleys and belt drive mechanisms : friction clutches Assignees: William J. Pierce - Hartford, Hartford County, CT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 27, 1888 Granted: Jul. 23, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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