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Karl Wilhelm Mauser received US Patent No. 2,140,709 on December 20, 1938, filed February 27, 1936.
The patent's description opens (from the scanned text):
This invention relates to constructional elements of metal for enclosing rooms, 'ships cabins and the like, which are formed from two or more metal plates held at distances apart and com- 5- pletely insulated from one another.
- Author
- Karl Wilhelm Mauser
- Published by
- US Patent Office
- Series
- US Patent No. 2,140,709
- Date
- December 20, 1938
- Library no.
- ACL Doc 22141 · asbestosclaims.law/library/22141
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 293 KB
Where it was listed
- Asbestos, March 1939, in its patents department (the year's issues)
Cite this document
Karl Wilhelm Mauser. “Construction Element (US Patent 2,140,709, 1938).” December 20, 1938. US Patent No. 2,140,709. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22141. https://asbestosclaims.law/library/22141.
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