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Drambour Rudolphe received US Patent No. 1,545,132 on July 7, 1925, filed October 31, 1919.
The patent's description opens (from the scanned text):
My invention has for its object to treat the fiber in such manner that the impurities associated by nature therewith are removed and the fiber put in good condition for commercial use.
- Author
- Drambour Rudolphe
- Published by
- US Patent Office
- Series
- US Patent No. 1,545,132
- Date
- July 7, 1925
- Library no.
- ACL Doc 23473 · asbestosclaims.law/library/23473
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 267 KB
Where it was listed
- Asbestos, September 1925, in its patents department (the year's issues)
Cite this document
Drambour Rudolphe. “Process of Purifying Asbestos and Fabricating Asbestos Materials (US Patent 1,545,132, 1925).” July 7, 1925. US Patent No. 1,545,132. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23473. https://asbestosclaims.law/library/23473.
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