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公开(公告)号：US3515842A
公开(公告)日：1970-06-02
申请号：US3515842D
申请日：1966-08-01
Applicant: TEXAS INSTRUMENTS INC
Inventor： NIEMEYER JAMES M , HELMS JOHN D
CPC classification number: G01N3/00 , G01N2203/0296
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