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公开(公告)号：US3252760A
公开(公告)日：1966-05-24
申请号：US26940163
申请日：1963-04-04
Applicant: BENDIX BALZERS VACUUM INC
Inventor： OTTO WINKLER , THADDAUS KRAUS
IPC: G01N33/20
CPC classification number: G01N33/203 , Y10T436/209163
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