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Ryosaku Matsuura received US Patent No. 1,946,327 on February 6, 1934, filed February 14, 1930. It was assigned to Minami Manshu Tetsudo Kabushik.
The patent's description opens (from the scanned text):
This invention relates to the magnesia cement which consists of magnesium oxide, magnesium sulphite and various aggregates and fillers.
- Author
- Ryosaku Matsuura
- Published by
- US Patent Office
- Series
- US Patent No. 1,946,327
- Date
- February 6, 1934
- Library no.
- ACL Doc 22920 · asbestosclaims.law/library/22920
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 1 pages · 108 KB
Where it was listed
- Asbestos, May 1934, in its patents department (the year's issues)
Cite this document
Ryosaku Matsuura. “Magnesia Cement, Method of Manufacturing (US Patent 1,946,327, 1934).” February 6, 1934. US Patent No. 1,946,327. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22920. https://asbestosclaims.law/library/22920.
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