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Armand V. Pretot received US Patent No. 2,137,677 on November 22, 1938, filed September 19, 1934.
The patent's description opens (from the scanned text):
This invention relates to a wall assembly providing satisfactory alignment of preformed units assembled therein and to the means for effecting such alignment.
- Author
- Armand V. Pretot
- Published by
- US Patent Office
- Series
- US Patent No. 2,137,677
- Date
- November 22, 1938
- Library no.
- ACL Doc 23822 · asbestosclaims.law/library/23822
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 396 KB
Where it was listed
- Asbestos, February 1939, in its patents department (the year's issues)
Cite this document
Armand V. Pretot. “Wall Assembly (US Patent 2,137,677, 1938).” November 22, 1938. US Patent No. 2,137,677. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23822. https://asbestosclaims.law/library/23822.
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