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Hans Niederreither and Otto Lang received US Patent No. 2,328,290 on August 31, 1943, filed July 22, 1939.
- Author
- Hans Niederreither; Otto Lang
- Published by
- US Patent Office
- Series
- US Patent No. 2,328,290
- Date
- August 31, 1943
- Library no.
- ACL Doc 23064 · asbestosclaims.law/library/23064
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, October 1943, in its patents department (the year's issues)
Cite this document
Hans Niederreither, Otto Lang. “Method of Making Cementitious Building Units (US Patent 2,328,290, 1943).” August 31, 1943. US Patent No. 2,328,290. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23064. https://asbestosclaims.law/library/23064.
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