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Stephen Chwastiak received US Patent No. 3,471,438 on October 7, 1969, filed October 24, 1966. It was assigned to Union Carbide Corp.
The patent's description opens:
This invention relates to an asbestos base composition.
- Author
- Stephen Chwastiak
- Published by
- US Patent Office
- Series
- US Patent No. 3,471,438
- Date
- October 7, 1969
- Library no.
- ACL Doc 21796 · asbestosclaims.law/library/21796
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, November 1969, in its patents department (the year's issues)
Cited on this site
Cite this document
Stephen Chwastiak. “Asbestos composition (US Patent 3,471,438, 1969).” October 7, 1969. US Patent No. 3,471,438. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21796. https://asbestosclaims.law/library/21796.
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