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Oscar Gerlach received US Patent No. 1,468,149 on September 18, 1923, filed February 24, 1920.
The patent's description opens (from the scanned text):
This invention relates to heat-insulating material and methods of manufacture thereof more particularly adaptedfor use in insulating flues, stoves and other heated articles.
- Author
- Oscar Gerlach
- Published by
- US Patent Office
- Series
- US Patent No. 1,468,149
- Date
- September 18, 1923
- Library no.
- ACL Doc 22620 · asbestosclaims.law/library/22620
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 2 pages · 132 KB
Where it was listed
- Asbestos, December 1923, in its patents department (the year's issues)
Cite this document
Oscar Gerlach. “Heat Insulating Material and method of manufacture (US Patent 1,468,149, 1923).” September 18, 1923. US Patent No. 1,468,149. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22620. https://asbestosclaims.law/library/22620.
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