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公开(公告)号：US3444156A
公开(公告)日：1969-05-13
申请号：US3444156D
申请日：1966-06-28
Applicant: CIBA LTD
Inventor： MONTMOLLIM RENE DE , LOEFFEL HANSROLF , OETIKER ALFRED , BUEHLER ARTHUR
CPC classification number: G03C1/30
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