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Otto Kippe received US Patent No. 1,975,954 on October 9, 1934, filed August 28, 1933. It was assigned to Kloeckner Werke AG.
The patent's description opens (from the scanned text):
This invention relates to a method of producing magnesia deficient in lime and calcium nitrate from dolomite.
- Author
- Otto Kippe
- Published by
- US Patent Office
- Series
- US Patent No. 1,975,954
- Date
- October 9, 1934
- Library no.
- ACL Doc 23079 · asbestosclaims.law/library/23079
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 2 pages · 235 KB
Where it was listed
- Asbestos, November 1934, in its patents department (the year's issues)
Cite this document
Otto Kippe. “Method of Producing Magnesia Deficient in Lime and Calcium Nitrate from Dolomite (US Patent 1,975,954, 1934).” October 9, 1934. US Patent No. 1,975,954. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23079. https://asbestosclaims.law/library/23079.
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