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William Nanfeldt received US Patent No. 2,273,770 on February 17, 1942, filed August 16, 1938. It was assigned to World Bestos Corp.
- Author
- William Nanfeldt
- Published by
- US Patent Office
- Series
- US Patent No. 2,273,770
- Date
- February 17, 1942
- Library no.
- ACL Doc 21915 · asbestosclaims.law/library/21915
- Rights
- US government work, in the public domain.
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Where it was listed
- Asbestos, April 1942, in its patents department (the year's issues)
Cite this document
William Nanfeldt. “Brake Lining (US Patent 2,273,770, 1942).” February 17, 1942. US Patent No. 2,273,770. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21915. https://asbestosclaims.law/library/21915.
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