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公开(公告)号：US3447712A
公开(公告)日：1969-06-03
申请号：US3447712D
申请日：1965-12-13
Applicant: BECKMAN INSTRUMENTS INC
Inventor： GALASSO MAURICE , KIRBY JOSEPH C
CPC classification number: B01L3/5021 , B01L3/50825
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