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John Clayton Kershaw received US Patent No. 2,130,091 on September 13, 1938, filed February 28, 1936. It was assigned to Eagle Picher Lead Co.
The patent's description opens (from the scanned text):
The invention relates to a new and improved e t in ul tin m teriai and method of producmg ame rea y W1 hstands high temperatures without disintegration.
- Author
- John Clayton Kershaw
- Published by
- US Patent Office
- Series
- US Patent No. 2,130,091
- Date
- September 13, 1938
- Library no.
- ACL Doc 22954 · asbestosclaims.law/library/22954
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 503 KB
Where it was listed
- Asbestos, October 1938, in its patents department (the year's issues)
Cite this document
John Clayton Kershaw. “Manufacture of Insulation Material (US Patent 2,130,091, 1938).” September 13, 1938. US Patent No. 2,130,091. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22954. https://asbestosclaims.law/library/22954.
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