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公开(公告)号：US3084255A
公开(公告)日：1963-04-02
申请号：US77370058
申请日：1958-11-13
Applicant: LAB FOR ELECTRONICS INC
Inventor： BRINKERHOFF JORIS M , BERSIN RICHARD L
IPC: G01T7/02
CPC classification number: G01T7/02
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