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August M. Dinkfeld and Thomas C. Pond received US Patent No. 2,348,614 on May 9, 1944, filed October 21, 1942. It was assigned to Johns Manville.
The patent's description opens (from the scanned text):
This invention relates to the manufacture of fireproof sheets and shapes adapted for building construction, and is particularly concerned with the manufacture of sheets and other shapes of comparatively high density and great mechanical strength, adapted for use as roofing or siding in situations where a strong, fireproof and weather-resisting material is desired.
- Author
- August M. Dinkfeld; Thomas C. Pond
- Published by
- US Patent Office
- Series
- US Patent No. 2,348,614
- Date
- May 9, 1944
- Library no.
- ACL Doc 22962 · asbestosclaims.law/library/22962
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 659 KB
Where it was listed
- Asbestos, June 1944, in its patents department (the year's issues)
Cited on this site
Cite this document
August M. Dinkfeld, Thomas C. Pond. “Manufacture of Structural Shapes and Resultant Product (US Patent 2,348,614, 1944).” May 9, 1944. US Patent No. 2,348,614. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22962. https://asbestosclaims.law/library/22962.
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