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John A. Scharwath received US Patent No. 1,577,495 on March 23, 1926, filed May 20, 1921.
The patent's description opens (from the scanned text):
This invention relates to improvements in insulating material for use on pipes where* in are conveyed vapors or liquids such as steam or hot water for the purpose of causing the heat to less rapidly radiate therefrom and cause a loss of efficiency.
- Author
- John A. Scharwath
- Published by
- US Patent Office
- Series
- US Patent No. 1,577,495
- Date
- March 23, 1926
- Library no.
- ACL Doc 22604 · asbestosclaims.law/library/22604
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 177 KB
Where it was listed
- Asbestos, May 1926, in its patents department (the year's issues)
Cite this document
John A. Scharwath. “Heat Insulating Material (US Patent 1,577,495, 1926).” March 23, 1926. US Patent No. 1,577,495. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22604. https://asbestosclaims.law/library/22604.
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