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公开(公告)号:US2879190A
公开(公告)日:1959-03-24
申请号:US64790857
申请日:1957-03-22
Applicant: BELL TELEPHONE LABOR INC
Inventor: LOGAN RALPH A , PETERS ARTHUR J , MORRIS TANENBAUM
CPC classification number: H01L29/06 , C30B31/06 , H01L21/00 , H01L21/18 , H01L29/73 , Y10S438/919 , Y10S438/92