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Roger A. Macarthur and Harold W. Greider received US Patent No. 2,284,439 on May 26, 1942, filed July 19, 1939.
The patent's description opens (from the scanned text):
This invention relates to heat insulation structures and method of making same.
- Author
- Roger A. Macarthur; Harold W. Greider
- Published by
- US Patent Office
- Series
- US Patent No. 2,284,439
- Date
- May 26, 1942
- Library no.
- ACL Doc 22657 · asbestosclaims.law/library/22657
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 9 pages · 974 KB
Where it was listed
- Asbestos, July 1942, in its patents department (the year's issues)
Cite this document
Roger A. Macarthur, Harold W. Greider. “Heat Insulation Structure (US Patent 2,284,439, 1942).” May 26, 1942. US Patent No. 2,284,439. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22657. https://asbestosclaims.law/library/22657.
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