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Frederick S. Walker received US Patent No. 2,369,502 on February 13, 1945, filed March 7, 1940. It was assigned to Raybestos Manhattan Inc.
The patent's description opens (from the scanned text):
This invention relates to improvements in friction materials and refers specifically to friction materials comprising metal or metal powders as an essential ingredient, the friction element being characterized in that it has a relatively low specific gravity; has a uniformly high wear resistance; can be constructed with friction coeificients covering a wide range and has a relatively high tensile strength.
- Author
- Frederick S. Walker
- Published by
- US Patent Office
- Series
- US Patent No. 2,369,502
- Date
- February 13, 1945
- Library no.
- ACL Doc 22447 · asbestosclaims.law/library/22447
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 407 KB
Where it was listed
- Asbestos, May 1945, in its patents department (the year's issues)
Cite this document
Frederick S. Walker. “Friction Material (US Patent 2,369,502, 1945).” February 13, 1945. US Patent No. 2,369,502. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22447. https://asbestosclaims.law/library/22447.
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