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公开(公告)号：US2952776A
公开(公告)日：1960-09-13
申请号：US75923958
申请日：1958-09-05
Applicant: ONTARIO RESEARCH FOUNDATION
Inventor： SCHUMACHER BERTHOLD W , GRUEN ARNOLD E
CPC classification number: G01N21/6456 , G01M9/06 , G01N23/22 , G01N2223/07 , G01N2223/102 , G01N2223/104 , G01N2223/638 , H01J41/06
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