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Wagner Rudolf Ernst received US Patent No. 1,385,341 on July 19, 1921, filed August 9, 1920.
The patent's description opens (from the scanned text):
The present invention consists in this that one or more press -rolls is or are combined with the strainer cylinder and bearing a inst the same, said press rolls being provided with peripheral grooves, notches, deep slots, or the like.
- Author
- Wagner Rudolf Ernst
- Published by
- US Patent Office
- Series
- US Patent No. 1,385,341
- Date
- July 19, 1921
- Library no.
- ACL Doc 23519 · asbestosclaims.law/library/23519
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 2 pages · 177 KB
Where it was listed
- Asbestos, October 1921, in its patents department (the year's issues)
Cite this document
Wagner Rudolf Ernst. “Pulp vat with rotary strainer cylinder and grooved press roller (US Patent 1,385,341, 1921).” July 19, 1921. US Patent No. 1,385,341. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23519. https://asbestosclaims.law/library/23519.
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