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公开(公告)号：US3101392A
公开(公告)日：1963-08-20
申请号：US79280159
申请日：1959-02-12
Applicant: ERICSSON TELEFON AB L M
Inventor： GUNNAR BRUNBERG KARL , BERNARD LILLSUNDE , STURE LINDENHALL JOHN
CPC classification number: H04Q3/0004 , H01H67/26 , H01H67/32
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