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Henry R. Wardell received US Patent No. 1,689,985 on October 30, 1928, filed November 23, 1921. It was assigned to Johns Manville Inc.
The patent's description opens (from the scanned text):
The invention relates to that t pe of readyto-lay or so-called prepared roo ng and shingles wherein a sheet of fibrous material which is saturated with an asphaltic Waterproofing compound is employed as the foundation or body layer of the roofing.
- Author
- Henry R. Wardell
- Published by
- US Patent Office
- Series
- US Patent No. 1,689,985
- Date
- October 30, 1928
- Library no.
- ACL Doc 23526 · asbestosclaims.law/library/23526
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 355 KB
Where it was listed
- Asbestos, January 1929, in its patents department (the year's issues)
Cite this document
Henry R. Wardell. “Ready Roofing (US Patent 1,689,985, 1928).” October 30, 1928. US Patent No. 1,689,985. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23526. https://asbestosclaims.law/library/23526.
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