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公开(公告)号：US3158019A
公开(公告)日：1964-11-24
申请号：US21012362
申请日：1962-07-16
Applicant: BECKMAN INSTRUMENTS INC
Inventor： DORA RALPH A , RICHARDS DONALD D
CPC classification number: G01N30/8651 , G01N30/8658 , G01N30/88 , G01N2030/8804 , G01N2030/8886 , Y10T137/86389
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