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Edgar Everhart received US Patent No. 1,542,684 on June 16, 1925, filed December 29, 1924.
The patent's description opens (from the scanned text):
The present invention relates to improvements 1n process for obtaining magnesia from dolomite, and has for an object to provide for the recovery of the oxide from this stone or mineral by few and simple steps adapted to be carried out in existing forms of apparatusqfl'q Dolomite is} a. crystallized mineral containing carbonate of calcium and magnesium and considerable difliculty has, been experienced in reducing the crystallinestone commercially; and great expense has been here- 5 tofore involved in the reduction and particularly in the separation of the magnesium and its ...
- Author
- Edgar Everhart
- Published by
- US Patent Office
- Series
- US Patent No. 1,542,684
- Date
- June 16, 1925
- Library no.
- ACL Doc 22934 · asbestosclaims.law/library/22934
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 1 pages · 114 KB
Where it was listed
- Asbestos, August 1925, in its patents department (the year's issues)
Cite this document
Edgar Everhart. “Magnesia from Dolomite (US Patent 1,542,684, 1925).” June 16, 1925. US Patent No. 1,542,684. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22934. https://asbestosclaims.law/library/22934.
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