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Paul A. Voigt and Johan E. Johansen received US Patent No. 2,318,820 on May 11, 1943, filed June 4, 1938.
The patent's description opens (from the scanned text):
The present invention relates to improvements in building structures, particularly those having thermal insulating material incorporated in their wall and roof or attic structures.
- Author
- Paul A. Voigt; Johan E. Johansen
- Published by
- US Patent Office
- Series
- US Patent No. 2,318,820
- Date
- May 11, 1943
- Library no.
- ACL Doc 21972 · asbestosclaims.law/library/21972
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 7 pages · 749 KB
Where it was listed
- Asbestos, June 1943, in its patents department (the year's issues)
Cite this document
Paul A. Voigt, Johan E. Johansen. “Building Construction with Insulation (US Patent 2,318,820, 1943).” May 11, 1943. US Patent No. 2,318,820. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21972. https://asbestosclaims.law/library/21972.
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