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Gustave L. Easterberg and Roger A. Macarthur received US Patent No. 2,422,344 on June 17, 1947, filed August 2, 1940.
The patent's description opens (from the scanned text):
This invention relates to water laid laminated sheet products and the method'oi making same, made from composition materials capabl of setting and becoming hard after being formed in sheets, slabs or other shapes.
- Author
- Gustave L. Easterberg; Roger A. Macarthur
- Published by
- US Patent Office
- Series
- US Patent No. 2,422,344
- Date
- June 17, 1947
- Library no.
- ACL Doc 22707 · asbestosclaims.law/library/22707
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 479 KB
Where it was listed
- Asbestos, September 1947, in its patents department (the year's issues)
Cite this document
Gustave L. Easterberg, Roger A. Macarthur. “Hydraulic Cement Products (US Patent 2,422,344, 1947).” June 17, 1947. US Patent No. 2,422,344. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22707. https://asbestosclaims.law/library/22707.
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