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公开(公告)号：US2741544A
公开(公告)日：1956-04-10
申请号：US31830452
申请日：1952-11-01
Applicant: STANFORD RESEARCH INST
Inventor： CHAIKIN SAUL W , PARKS THOMAS D , GLASSBROOK CLARENCE I
IPC: G01N21/64
CPC classification number: G01N21/643 , G01N21/8483 , G01N2021/6432 , G01N2021/7786 , Y10T436/153333 , Y10T436/19
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