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August P. Jurgensen received US Patent No. 1,735,684 on November 12, 1929, filed July 23, 1929. It was assigned to Concentric Air Cells Automatic.
The patent's description opens (from the scanned text):
My invention relates to a new and useful method of making air cell pipe covering of the type generally employed for insulating ues, steamvpipes, stacks, exhaust'pipes and the like, and it relates more particularly. to a novel method of making such air cell p ipe covering whereby a perfectly cylindrical, 1n1- tially split product, which has a uniform cross section throughout, is obtained, this application being divided from my copendlng application Serial No. 336,163, fi ed January 30, 1929.
- Author
- August P. Jurgensen
- Published by
- US Patent Office
- Series
- US Patent No. 1,735,684
- Date
- November 12, 1929
- Library no.
- ACL Doc 23070 · asbestosclaims.law/library/23070
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 419 KB
Where it was listed
- Asbestos, February 1930, in its patents department (the year's issues)
Cite this document
August P. Jurgensen. “Method of Manufacturing Aircell Pipe Covering (US Patent 1,735,684, 1929).” November 12, 1929. US Patent No. 1,735,684. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23070. https://asbestosclaims.law/library/23070.
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