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Donald W. Fether received US Patent No. 2,334,399 on November 16, 1943, filed April 27, 1942.
- Author
- Donald W. Fether
- Published by
- US Patent Office
- Series
- US Patent No. 2,334,399
- Date
- November 16, 1943
- Library no.
- ACL Doc 22617 · asbestosclaims.law/library/22617
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, January 1944, in its patents department (the year's issues)
Cite this document
Donald W. Fether. “Heat Insulating Material (US Patent 2,334,399, 1943).” November 16, 1943. US Patent No. 2,334,399. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22617. https://asbestosclaims.law/library/22617.
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