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Carl Herzog received US Patent No. 1,670,855 on May 22, 1928, filed May 6, 1927.
The patent's description opens (from the scanned text):
This invention relates to a new and im proved method of manufacturing pipes from asbestos cement and similar materials.
- Author
- Carl Herzog
- Published by
- US Patent Office
- Series
- US Patent No. 1,670,855
- Date
- May 22, 1928
- Library no.
- ACL Doc 23354 · asbestosclaims.law/library/23354
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 251 KB
Where it was listed
- Asbestos, June 1928, in its patents department (the year's issues)
Cite this document
Carl Herzog. “Pipes from Asbestos Cement or a Similar Material (US Patent 1,670,855, 1928).” May 22, 1928. US Patent No. 1,670,855. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23354. https://asbestosclaims.law/library/23354.
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