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Alfred Welz received US Patent No. 2,779,252 on January 29, 1957, filed May 11, 1953. It was assigned to Filtrox Werk AG.
The patent's description opens (from the scanned text):
The present invention relates to another method of this type and to means for carrying out the same, and permits to eliminate the said disadvantages.
- Author
- Alfred Welz
- Published by
- US Patent Office
- Series
- US Patent No. 2,779,252
- Date
- January 29, 1957
- Library no.
- ACL Doc 21706 · asbestosclaims.law/library/21706
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 248 KB
Where it was listed
- Asbestos, March 1957, in its patents department (the year's issues)
Cite this document
Alfred Welz. “Apparatus for making boardlike products from a fibrous cement mixture (US Patent 2,779,252, 1957).” January 29, 1957. US Patent No. 2,779,252. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21706. https://asbestosclaims.law/library/21706.
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