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US Patent: RE15,115
Method of driving electric centrifugal machines
Patentee:
Edward D. Mackintosh - 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 pdf tiff
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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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