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August Fricke received US Patent No. 1,779,229 on October 21, 1930, filed May 4, 1929. It was assigned to Firm Hawenta Plattengesellscha.
The patent's description opens (from the scanned text):
This invention relates to a process of producing well adhering coatings on asbestoscement-slate plates, i. e., plates composed of a nliixture of asbestos, Portland cement and s ate. 7 Processes for the production of color patterned plates used for covering walls have be come known.
- Author
- August Fricke
- Published by
- US Patent Office
- Series
- US Patent No. 1,779,229
- Date
- October 21, 1930
- Library no.
- ACL Doc 23472 · asbestosclaims.law/library/23472
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 1 pages · 92 KB
Where it was listed
- Asbestos, December 1930, in its patents department (the year's issues)
Cite this document
August Fricke. “Process of Producing Well Adhering Coatings on Asbestos Cement Slate Plates (US Patent 1,779,229, 1930).” October 21, 1930. US Patent No. 1,779,229. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23472. https://asbestosclaims.law/library/23472.
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