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Marion S. Badollet received US Patent No. 2,220,386 on November 5, 1940, filed December 23, 1936. It was assigned to Johns Manville.
The patent's description opens (from the scanned text):
This invention relates to an asbestos product and the method of making the same, particularly to the method of increasing the freeness of asbestos fibres.
- Author
- Marion S. Badollet
- Published by
- US Patent Office
- Series
- US Patent No. 2,220,386
- Date
- November 5, 1940
- Library no.
- ACL Doc 23628 · asbestosclaims.law/library/23628
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 2 pages · 268 KB
Where it was listed
- Asbestos, December 1940, in its patents department (the year's issues)
Cited on this site
Cite this document
Marion S. Badollet. “Sheet Asbestos Product (US Patent 2,220,386, 1940).” November 5, 1940. US Patent No. 2,220,386. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23628. https://asbestosclaims.law/library/23628.
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