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US Patent: RE15,115
Method of driving electric centrifugal machines
Patentee: Edward D. Mackintosh (exact or similar names) - Brooklyn, NY USPTO Classifications: 210/145, 464/41 Tool Categories: Assignees: Edith Mackintosh - Brooklyn, NY S. S. Hepworth Co. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 02, 1921 Granted: May 31, 1921 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: Inventor Mackintosh was deceased at the time of reissue. The reissue was filed by H. E. Donnell, president of S. S. Hepworth Co.

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