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William Nanfeldt received US Patent No. 2,262,733 on November 11, 1941, filed February 21, 1939. It was assigned to World Bestos Corp.
- Author
- William Nanfeldt
- Published by
- US Patent Office
- Series
- US Patent No. 2,262,733
- Date
- November 11, 1941
- Library no.
- ACL Doc 22450 · asbestosclaims.law/library/22450
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, December 1941, in its patents department (the year's issues)
Cite this document
William Nanfeldt. “Friction Material, Process of Making (US Patent 2,262,733, 1941).” November 11, 1941. US Patent No. 2,262,733. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22450. https://asbestosclaims.law/library/22450.
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