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US Patent: 53,092
Improved composition to be used as a cement and as a plastic material for molding various articles
Material for making grinding wheels
Patentee:
Stanislas Sorel - Paris, France

USPTO Classifications:
106/684, 106/685, 15/193

Tool Categories:

Assignees:
None

Manufacturer:
Union Stone Co. - Boston, MA

Witnesses:
Edward Tuck
A. Bletry

Patent Dates:
Granted: Mar. 06, 1866

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Union Stone Co.
Description:
This method of producing composition products was used by the Union Stone Co. to produce emery wheels, hones, etc., plus artificial soapstone for making various decorative items. See also patent 100,944.

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