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Vault Aylett F. De received US Patent No. 2,307,734 on January 12, 1943, filed May 26, 1942. It was assigned to Tilo Roofing Co Inc.
The patent's description opens (from the scanned text):
This invention relates to the'art of making earthen or cement shingles and the like, and has for an object the provision of improvements in this art.
- Author
- Vault Aylett F. De
- Published by
- US Patent Office
- Series
- US Patent No. 2,307,734
- Date
- January 12, 1943
- Library no.
- ACL Doc 22024 · asbestosclaims.law/library/22024
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 352 KB
Where it was listed
- Asbestos, February 1943, in its patents department (the year's issues)
Cite this document
Vault Aylett F. De. “Ceramic Shingle (US Patent 2,307,734, 1943).” January 12, 1943. US Patent No. 2,307,734. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22024. https://asbestosclaims.law/library/22024.
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