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US Patent: 410,232
Friction Coupling
Patentee: Richard C. Borchers (exact or similar names) - Philadelphia, PA USPTO Classifications: 192/79 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine clutches Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 08, 1889 Granted: Sep. 03, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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