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Ray E. Spokes received US Patent No. 2,457,003 on December 21, 1948, filed July 31, 1944. It was assigned to American Brake Shoe Co.
The patent's description opens (from the scanned text):
This invention relates to, friction elementsand particularly to those which are suitable for heavy. duty use as by being employedin brakes ,of trucks, busses and kindred relatively heavy automotive. vehicles and which are also suitable for use in. many industrial applications.
- Author
- Ray E. Spokes
- Published by
- US Patent Office
- Series
- US Patent No. 2,457,003
- Date
- December 21, 1948
- Library no.
- ACL Doc 22402 · asbestosclaims.law/library/22402
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 736 KB
Where it was listed
- Asbestos, February 1949, in its patents department (the year's issues)
Cite this document
Ray E. Spokes. “Friction Element (US Patent 2,457,003, 1948).” December 21, 1948. US Patent No. 2,457,003. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22402. https://asbestosclaims.law/library/22402.
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