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Herbert Abraham received US Patent No. 2,444,623 on July 6, 1948, filed November 27, 1945. It was assigned to Ruberoid Co.
The patent's description opens (from the scanned text):
This invention relates to shingles made from sheets of roofing felt impregnated and coated with asphalt or other suitable bituminous substances, and usually faced on the weather surface with particles of mineral matter.
- Author
- Herbert Abraham
- Published by
- US Patent Office
- Series
- US Patent No. 2,444,623
- Date
- July 6, 1948
- Library no.
- ACL Doc 23644 · asbestosclaims.law/library/23644
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 241 KB
Where it was listed
- Asbestos, August 1948, in its patents department (the year's issues)
Cite this document
Herbert Abraham. “Shingle (US Patent 2,444,623, 1948).” July 6, 1948. US Patent No. 2,444,623. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23644. https://asbestosclaims.law/library/23644.
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