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George B. Brown received US Patent No. 2,230,880 on February 4, 1941, filed January 25, 1938. It was assigned to Johns Manville.
The patent's description opens (from the scanned text):
This invention relates to an apparatus for making an asbestos and cement product.
- Author
- George B. Brown
- Published by
- US Patent Office
- Series
- US Patent No. 2,230,880
- Date
- February 4, 1941
- Library no.
- ACL Doc 21683 · asbestosclaims.law/library/21683
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 409 KB
Where it was listed
- Asbestos, April 1941, in its patents department (the year's issues)
Cited on this site
Cite this document
George B. Brown. “Apparatus for Making an Asbestos Product (US Patent 2,230,880, 1941).” February 4, 1941. US Patent No. 2,230,880. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21683. https://asbestosclaims.law/library/21683.
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