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11.发明授权
公开(公告)号：US3504977A
公开(公告)日：1970-04-07
申请号：US3504977D
申请日：1967-06-30
Applicant: BECKMAN INSTRUMENTS INC
Inventor： MATTHEWS KENNETH V
CPC classification number: G01J3/42 , G01J2003/2866
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公开(公告)号：US3486823A
公开(公告)日：1969-12-30
申请号：US3486823D
申请日：1967-05-16
Applicant: BECKMAN INSTRUMENTS INC
Inventor： MATTHEWS KENNETH V
IPC: G01J3/42
CPC classification number: G01J3/42
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