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Ronald F. Cotts received US Patent No. 3,250,633 on May 10, 1966, filed January 17, 1962.
The patent's description opens:
The present invention relates to an acoustical tile, and more particularly to a fire resistant acoustical tile in which there are mineral fibers of at least two different types.
- Author
- Ronald F. Cotts
- Published by
- US Patent Office
- Series
- US Patent No. 3,250,633
- Date
- May 10, 1966
- Library no.
- ACL Doc 23208 · asbestosclaims.law/library/23208
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 484 KB
Where it was listed
- Asbestos, July 1966, in its patents department (the year's issues)
Cited on this site
Cite this document
Ronald F. Cotts. “Molded mineral fiber acoustical tile (US Patent 3,250,633, 1966).” May 10, 1966. US Patent No. 3,250,633. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23208. https://asbestosclaims.law/library/23208.
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