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公开(公告)号：US3523777A
公开(公告)日：1970-08-11
申请号：US3523777D
申请日：1967-06-29
Applicant: BECKMAN INSTRUMENTS INC
Inventor： PETERSEN ARNE J , TAYLOR JOHN T , ROHRER DAVID ALBERT
CPC classification number: G01N27/36
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