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公开(公告)号：US3484194A
公开(公告)日：1969-12-16
申请号：US3484194D
申请日：1966-09-21
Applicant: ENGELHARD IND INC
Inventor： HINDIN SANL GERALD , DETTLING JOSEPH C
CPC classification number: B01J29/08 , C01B33/2853 , Y10S423/21
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