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Ronald J. A. Courtney received US Patent No. 3,583,913 on June 8, 1971, filed October 11, 1968. It was assigned to International Nickel Co Inc.
The patent's abstract:
A SOLID LUBRICANT FOR USE IN THE HOT EXTRUSION OF METALS COMPRISES A COHERENT DISC HAVING ABOUT 2% TO 15% BY WEIGHT OF A FIBER SUCH AS ASBESTOS OR HEMP WITH THE REST CALCIUM SILICATE.
- Author
- Ronald J. A. Courtney
- Published by
- US Patent Office
- Series
- US Patent No. 3,583,913
- Date
- June 8, 1971
- Library no.
- ACL Doc 22251 · asbestosclaims.law/library/22251
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, September 1971, in its patents department (the year's issues)
Cited on this site
Cite this document
Ronald J. A. Courtney. “Extrusion lubricant (US Patent 3,583,913, 1971).” June 8, 1971. US Patent No. 3,583,913. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22251. https://asbestosclaims.law/library/22251.
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