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US Patent: 1,004,574
Coupling device
Patentee: James Melvin Jones (exact or similar names) - Hamilton, ON Canada USPTO Classifications: 403/391, 403/393, 74/586 Tool Categories: industrial machines : industrial machine mechanisms Assignees: None Manufacturer: Not known to have been produced Witnesses: Alfred T. Bratton Gertie Nicholson	Patent Dates: Applied: Feb. 24, 1911 Granted: Oct. 03, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Jones Safety Device Co.

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