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Jacob A. Stadtfeld received US Patent No. 1,876,783 on September 13, 1932, filed September 28, 1929. It was assigned to Plant Rubber & Asbestos Works.
The patent's description opens (from the scanned text):
My invention is designed to obviate the above difli'culties, by the provision of a light, but yet heat-resistant, heat-insulating .and acid-resistant flue.
- Author
- Jacob A. Stadtfeld
- Published by
- US Patent Office
- Series
- US Patent No. 1,876,783
- Date
- September 13, 1932
- Library no.
- ACL Doc 22355 · asbestosclaims.law/library/22355
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 353 KB
Where it was listed
- Asbestos, January 1933, in its patents department (the year's issues)
Cite this document
Jacob A. Stadtfeld. “Flue or Vent (US Patent 1,876,783, 1932).” September 13, 1932. US Patent No. 1,876,783. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22355. https://asbestosclaims.law/library/22355.
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