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Jr William R. Wright received US Patent No. 2,171,155 on August 29, 1939, filed April 12, 1937.
The patent's description opens (from the scanned text):
This invention relates to the manufacture of fiber-cement products and, more particularly, to the production of shingles for covering roofs and side walls, having their upper surfaces irregularly grooved to provide ornamental surface contours, e. g., to provide a simulation of the grained appearance of wooden shingles.
- Author
- Jr William R. Wright
- Published by
- US Patent Office
- Series
- US Patent No. 2,171,155
- Date
- August 29, 1939
- Library no.
- ACL Doc 21752 · asbestosclaims.law/library/21752
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 408 KB
Where it was listed
- Asbestos, November 1939, in its patents department (the year's issues)
Cite this document
Jr William R. Wright. “Asbestos Cement Shingle (US Patent 2,171,155, 1939).” August 29, 1939. US Patent No. 2,171,155. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21752. https://asbestosclaims.law/library/21752.
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