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William Nanfeldt received US Patent No. 1,758,055 on May 13, 1930, filed November 6, 1925. It was assigned to World Bestos Corp.
- Author
- William Nanfeldt
- Published by
- US Patent Office
- Series
- US Patent No. 1,758,055
- Date
- May 13, 1930
- Library no.
- ACL Doc 22461 · asbestosclaims.law/library/22461
- Rights
- US government work, in the public domain.
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Where it was listed
- Asbestos, June 1930, in its patents department (the year's issues)
Cite this document
William Nanfeldt. “Friction and Heat Resisting Article (US Patent 1,758,055, 1930).” May 13, 1930. US Patent No. 1,758,055. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22461. https://asbestosclaims.law/library/22461.
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