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William H. Morris received US Patent No. 1,807,858 on June 2, 1931, filed April 4, 1927. It was assigned to Ambler Asbestos Co.
The patent's description opens (from the scanned text):
This invention relates to a method for coloring articles ofplastic material and more particularly to the coloring of'shingles of asbestos-ibre composition.
- Author
- William H. Morris
- Published by
- US Patent Office
- Series
- US Patent No. 1,807,858
- Date
- June 2, 1931
- Library no.
- ACL Doc 23458 · asbestosclaims.law/library/23458
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 289 KB
Where it was listed
- Asbestos, September 1931, in its patents department (the year's issues)
Cite this document
William H. Morris. “Process of Coloring Plastic Material (US Patent 1,807,858, 1931).” June 2, 1931. US Patent No. 1,807,858. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23458. https://asbestosclaims.law/library/23458.
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