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公开(公告)号：US3240070A
公开(公告)日：1966-03-15
申请号：US31433663
申请日：1963-10-07
Applicant: BECKMAN INSTRUMENTS INC
Inventor： MARTIN DONALD N , JOHNSON CARLTON W
IPC: G01N1/00
CPC classification number: G01N35/1095 , Y10T74/19879
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