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Alan R. Mcgarvey and Conral C. Callis received US Patent No. 2,423,841 on July 15, 1947, filed August 14, 1946. It was assigned to Armstrong Cork Co.
The patent's description opens (from the scanned text):
The invention relates especially to magnesia insulation of the type known to the art as 85% magnesia and particularly tothat type of insulation prepared according to the method set forth in the copending application of Alan R.
- Author
- Alan R. Mcgarvey; Conral C. Callis
- Published by
- US Patent Office
- Series
- US Patent No. 2,423,841
- Date
- July 15, 1947
- Library no.
- ACL Doc 22927 · asbestosclaims.law/library/22927
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 631 KB
Where it was listed
- Asbestos, October 1947, in its patents department (the year's issues)
Cite this document
Alan R. Mcgarvey, Conral C. Callis. “Magnesia Insulation (US Patent 2,423,841, 1947).” July 15, 1947. US Patent No. 2,423,841. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22927. https://asbestosclaims.law/library/22927.
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