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CA Patent: CA-1,572
Improvements on shaft couplings
Patentee: Thomas Northey (exact or similar names) - Hamilton, ON Canada USPTO Classifications: Tool Categories: industrial machines : industrial machine mechanisms : industrial machine shaft couplings Assignees: None Manufacturer: Thomas Northey - Hamilton, ON Canada Witnesses: William Bruce P. L. Scrivener	Patent Dates: Applied: Jul. 01, 1872 Granted: Jul. 22, 1872 Patent Pictures: CIPO Data Report data errors or omissions to steward Jeff Joslin "Vintage Machinery" entry for Thomas Northey

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