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Emil C. Loetscher received US Patent No. 2,034,522 on March 17, 1936, filed February 19, 1934.
The patent's description opens (from the scanned text):
This invention relates to improvements in fireproof building material, and more particularly to a composite material of exceptionally high fire-resis and adapted to be produced commercially in the form of sheets, boards or panels for use as a general fireproof structural material, or in the form of fabricated units or special shapes such as doors, door panels, interior trim, and such articles as make up th ordinary run of mill-work products.
- Author
- Emil C. Loetscher
- Published by
- US Patent Office
- Series
- US Patent No. 2,034,522
- Date
- March 17, 1936
- Library no.
- ACL Doc 22322 · asbestosclaims.law/library/22322
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 529 KB
Where it was listed
- Asbestos, April 1936, in its patents department (the year's issues)
Cite this document
Emil C. Loetscher. “Fireproof Building Material (US Patent 2,034,522, 1936).” March 17, 1936. US Patent No. 2,034,522. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22322. https://asbestosclaims.law/library/22322.
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