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公开(公告)号:US2692304A
公开(公告)日:1954-10-19
申请号:US29300852
申请日:1952-06-11
Applicant: ERICSSON TELEFON AB L M
IPC: H01H67/26
CPC classification number: H01H67/26
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公开(公告)号:US2689894A
公开(公告)日:1954-09-21
申请号:US29138452
申请日:1952-06-03
Applicant: ERICSSON TELEFON AB L M
Inventor: EDVIN WIKSTROM JOEL , AXEL LUNDKVIST KARL , OSSIAN JORGENSEN ANDERS
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