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Richard V. Mattison received US Patent No. 1,678,346 on July 24, 1928, filed February 12, 1924.
The patent's description opens (from the scanned text):
This invention relates to artificial products of the general character of millboard, wall board, roofings, and the like, and its object is to produce a composition, and process of making the same, which shall be durable, fireproof, water and weather resisting, easily handled and worked, and generally adapted to meet the requirements of such material.
- Author
- Richard V. Mattison
- Published by
- US Patent Office
- Series
- US Patent No. 1,678,346
- Date
- July 24, 1928
- Library no.
- ACL Doc 23182 · asbestosclaims.law/library/23182
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 2 pages · 179 KB
Where it was listed
- Asbestos, October 1928, in its patents department (the year's issues)
Cite this document
Richard V. Mattison. “Millboard Product and Process (US Patent 1,678,346, 1928).” July 24, 1928. US Patent No. 1,678,346. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23182. https://asbestosclaims.law/library/23182.
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