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Rudolf L. R. Wild received US Patent No. 1,803,448 on May 5, 1931, filed November 29, 1929.
The patent's description opens (from the scanned text):
The present invention relates to friction materials, and is particularly concerned with friction materials adapted to be used for the frictional resistive lining or facing of clutches, brakes, and the like.
- Author
- Rudolf L. R. Wild
- Published by
- US Patent Office
- Series
- US Patent No. 1,803,448
- Date
- May 5, 1931
- Library no.
- ACL Doc 22434 · asbestosclaims.law/library/22434
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 11 pages · 1020 KB
Where it was listed
- Asbestos, July 1931, in its patents department (the year's issues)
Cited on this site
Cite this document
Rudolf L. R. Wild. “Friction Material (US Patent 1,803,448, 1931).” May 5, 1931. US Patent No. 1,803,448. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22434. https://asbestosclaims.law/library/22434.
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