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公开(公告)号：US3394123A
公开(公告)日：1968-07-23
申请号：US52750866
申请日：1966-02-15
Applicant: CIBA LTD
Inventor： KARL RONCO , PAUL HEGNER
IPC: C09B43/32
CPC classification number: C09B43/32
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