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US Patent: 939,829
Insulating shaft-coupling
Patentee: John Richard Grundy (exact or similar names) - Philadelphia, PA USPTO Classifications: 403/336, 464/87, 464/900 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine shaft couplings Assignees: Charles Bond Co. - Philadelphia, PA Manufacturer: Charles Bond Co. - Philadelphia, PA Canadian Bond Hanger & Coupling Co., Ltd. - Alexandria, ON Canada Witnesses: William A. Barr Joseph H. Klein	Patent Dates: Applied: Mar. 29, 1909 Granted: Nov. 09, 1909 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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