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US Patent: 928,679
Variable-speed mechanism
Patentee: Allan G. Mather (exact or similar names) - Ottawa, ON Canada USPTO Classifications: 192/103.0FA, 192/104C, 192/106F, 192/85.47 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine pulleys and belt drive mechanisms Assignees: None Manufacturer: Not known to have been produced Witnesses: W. T. Cuffe-Quin Hugh J. Dunn	Patent Dates: Applied: Jan. 20, 1909 Granted: Jul. 20, 1909 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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