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Walter Arnold Rukeyser received US Patent No. 1,875,890 on September 6, 1932, filed July 3, 1930.
The patent's description opens (from the scanned text):
The invention relates to a method for treating asbestos and has for its particular object to provide a method whereby the crude asbestos may be cleanly separated from the rock particles adhering to it and at the same time maintain the crude asbestos in the masslike form most suitable for use in the asbestos manufacturing industry.
- Author
- Walter Arnold Rukeyser
- Published by
- US Patent Office
- Series
- US Patent No. 1,875,890
- Date
- September 6, 1932
- Library no.
- ACL Doc 23086 · asbestosclaims.law/library/23086
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, November 1932, in its patents department (the year's issues)
Cite this document
Walter Arnold Rukeyser. “Method of Treating Asbestos (US Patent 1,875,890, 1932).” September 6, 1932. US Patent No. 1,875,890. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23086. https://asbestosclaims.law/library/23086.
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