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Horace E. Stump received US Patent No. 1,988,524 on January 22, 1935, filed August 20, 1931.
The patent's description opens (from the scanned text):
My invention relates to separating magnesium, preferably in the form of magnesium carbonate, from a mixture of magnesium oxide and calcium carbonate, and especially such a mixture as may readily be obtained by burning a mixture of magnesium carbonate and calcium carbonate as found in nature, for instance in the mineral dolomite.
- Author
- Horace E. Stump
- Published by
- US Patent Office
- Series
- US Patent No. 1,988,524
- Date
- January 22, 1935
- Library no.
- ACL Doc 23074 · asbestosclaims.law/library/23074
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 271 KB
Where it was listed
- Asbestos, March 1935, in its patents department (the year's issues)
Cite this document
Horace E. Stump. “Method of Obtaining Magnesium Carbonate (US Patent 1,988,524, 1935).” January 22, 1935. US Patent No. 1,988,524. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23074. https://asbestosclaims.law/library/23074.
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