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Russell B. Crowell received US Patent No. 1,573,632 on February 16, 1926, filed June 26, 1925. It was assigned to Western Ind Co.
The patent's description opens (from the scanned text):
The present invention relates to a process for producing a light basic magnesium carbonate from calcined magnesite (MgO) possessing the hysical roperties of a low density and a igh mec anical strength to a degree especially adapted for the manufacture of heat insulating materials therefrom.
- Author
- Russell B. Crowell
- Published by
- US Patent Office
- Series
- US Patent No. 1,573,632
- Date
- February 16, 1926
- Library no.
- ACL Doc 23441 · asbestosclaims.law/library/23441
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 500 KB
Where it was listed
- Asbestos, May 1926, in its patents department (the year's issues)
Cite this document
Russell B. Crowell. “Process for producing Light Basic Magnesium Carbonate (US Patent 1,573,632, 1926).” February 16, 1926. US Patent No. 1,573,632. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23441. https://asbestosclaims.law/library/23441.
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