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发明名称
SAETT OCH ANORDNING FOER UPPKOPPLING AV EN SLUTEN RING GENOM EN TELEFONVAEXEL.
摘要
申请公布号
FI850233(A0)
申请公布日期
1985.01.18
申请号
FI19850000233
申请日期
1985.01.18
申请人
OY LM ERICSSON AB
发明人
NILSSON, ERIK OLOF
分类号
H04M3/00;H04L12/43;H04Q11/04;(IPC1-7):H04Q/
主分类号
H04M3/00
代理机构
代理人
主权项
地址
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