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公开(公告)号：US2599315A
公开(公告)日：1952-06-03
申请号：US67419146
申请日：1946-06-04
Applicant: HONORARY ADVISORY COUNCIL SCI
Inventor： WINNETT BOYD , FRANKLIN TUPPER KENNETH
IPC: G01L3/20
CPC classification number: G01L3/20
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