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Donald J. Petersen received US Patent No. 3,369,929 on February 20, 1968, filed September 21, 1962. It was assigned to National Gypsum Co.
The patent's description opens:
The present invention relates to the application of a gypsum plaster composition on a metallic structural base, and is particularly directed to a plaster composition for spray-on application to a metal base.
- Author
- Donald J. Petersen
- Published by
- US Patent Office
- Series
- US Patent No. 3,369,929
- Date
- February 20, 1968
- Library no.
- ACL Doc 23362 · asbestosclaims.law/library/23362
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 424 KB
Where it was listed
- Asbestos, April 1968, in its patents department (the year's issues)
Cite this document
Donald J. Petersen. “Plaster on metal application (US Patent 3,369,929, 1968).” February 20, 1968. US Patent No. 3,369,929. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23362. https://asbestosclaims.law/library/23362.
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