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Elizabeth M. Rose and Evans Marriage Eliz Macilhenny received US Patent No. 1,714,438 on May 21, 1929, filed April 22, 1922.
The patent's description opens (from the scanned text):
The invention relates to a method for separating asbestos from rock and associated impurities occurring in the natural mineral, and simultaneously separating the fibrous elements of the asbestos from each other without damaging or impairing the fibres, so that the latter are obtained in the best possible condition as to length and purity for spinning and other commercial operations to which the. fibre is particularly adapted.
- Author
- Elizabeth M. Rose; Evans Marriage Eliz Macilhenny
- Published by
- US Patent Office
- Series
- US Patent No. 1,714,438
- Date
- May 21, 1929
- Library no.
- ACL Doc 23017 · asbestosclaims.law/library/23017
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 441 KB
Where it was listed
- Asbestos, June 1929, in its patents department (the year's issues)
Cite this document
Elizabeth M. Rose, Evans Marriage Eliz Macilhenny. “Method for Separating Asbestos (US Patent 1,714,438, 1929).” May 21, 1929. US Patent No. 1,714,438. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23017. https://asbestosclaims.law/library/23017.
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