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公开(公告)号：US3295116A
公开(公告)日：1966-12-27
申请号：US33247163
申请日：1963-12-23
Applicant: BELL TELEPHONE LABOR INC
Inventor： GENKE RICHARD M , KETCHLEDGE RAYMOND W , SAGER RICHARD E
CPC classification number: H03K17/64 , G11C11/06085
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