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US Patent: 685,145
Transmission or Coupling Device for Power Engines or Machines
Patentee: Hugo John (exact or similar names) - Erfurt, Prussia, German Empire USPTO Classifications: 74/116 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine shaft couplings Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 08, 1900 Granted: Oct. 22, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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