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William Nanfeldt received US Patent No. 1,585,626 on May 18, 1926, filed April 17, 1925. It was assigned to World Bestos Corp.
The patent's description opens (from the scanned text):
This invention relates to an improved yarn and process for inaking'the same.
- Author
- William Nanfeldt
- Published by
- US Patent Office
- Series
- US Patent No. 1,585,626
- Date
- May 18, 1926
- Library no.
- ACL Doc 22460 · asbestosclaims.law/library/22460
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, July 1926, in its patents department (the year's issues)
Cite this document
William Nanfeldt. “Friction Yarn and process and apparatus for making same (US Patent 1,585,626, 1926).” May 18, 1926. US Patent No. 1,585,626. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22460. https://asbestosclaims.law/library/22460.
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