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US Patent: 75,273
Improvement in grinding-mills
Patentees:
Scott A. Smith - Philadelphia, PA
George W. Hubbard - Philadelphia, PA

USPTO Classifications:
241/249, 241/259.1

Tool Categories:

Assignees:
Cresson & Smith - Philadelphia, PA

Manufacturer:
Geo. V. Cresson Co. - Philadelphia, PA
Cresson & Smith - Philadelphia, PA

Witnesses:
H. B. Heyl
E. Oscar Haeuptner

Patent Dates:
Granted: Mar. 10, 1868

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for George V. Cresson & Co.

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