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Edward F. Harford received US Patent No. 3,347,737 on October 17, 1967, filed August 18, 1966. It was assigned to EI Du Pont de Nemours and Co.
The patent's description opens:
This invention relates to air-pervious sheets, much in the form of paper, which contain fibers of polytetrahaloethylene, polyhexahalopropylene, including copolymers of each or other closely related polymers such as the telomers of each and bearings wherein such sheets are adhered to a rigid support.
- Author
- Edward F. Harford
- Published by
- US Patent Office
- Series
- US Patent No. 3,347,737
- Date
- October 17, 1967
- Library no.
- ACL Doc 21849 · asbestosclaims.law/library/21849
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 474 KB
Where it was listed
- Asbestos, December 1967, in its patents department (the year's issues)
Cite this document
Edward F. Harford. “Bearing surface (US Patent 3,347,737, 1967).” October 17, 1967. US Patent No. 3,347,737. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21849. https://asbestosclaims.law/library/21849.
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