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William W. Bainbridge received US Patent No. 2,271,728 on February 3, 1942, filed September 19, 1940. It was assigned to United States Gypsum Co.
The patent's description opens (from the scanned text):
This invention relates to a roofing shingle and has for an object the provision of a rigid roong element which may be readily applied to the roof of a building structure.
- Author
- William W. Bainbridge
- Published by
- US Patent Office
- Series
- US Patent No. 2,271,728
- Date
- February 3, 1942
- Library no.
- ACL Doc 23588 · asbestosclaims.law/library/23588
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 578 KB
Where it was listed
- Asbestos, March 1942, in its patents department (the year's issues)
Cite this document
William W. Bainbridge. “Roofing Element (US Patent 2,271,728, 1942).” February 3, 1942. US Patent No. 2,271,728. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23588. https://asbestosclaims.law/library/23588.
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