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Two-stage causticizing
US 2,552,183 A
Filed
: 09/19/1945
Issued
: 05/08/1951
Est. Priority Date
: 04/07/1945
Status: Expired due to Term
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Current Assignee
Cyril H. Knight
Original Assignee
Cyril H. Knight
Inventors
Knight, Cyril H.
Application Number
US02/617,239
Time in Patent Office
2,057 Days
Field of Search
US Class Current
423/183
CPC Class Codes
C01D 1/28
Purification; Separation
D21C 11/0064
Aspects concerning the prod...
Y10S 423/03
Papermaking liquor
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