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发明名称
LINJEIDENTIFIERINGSANORDNING VID AUTOMATISKA TELEFONVEXLAR MED CENTRAL STYRNING
摘要
申请公布号
SE413968(B)
申请公布日期
1980.06.30
申请号
SE19740006745
申请日期
1974.05.21
申请人
* HITACHI LTD
发明人
H * SHIRASU;H * USUDA
分类号
H04Q3/54;H04M3/00;H04Q3/42;H04Q3/555;H04Q3/72;(IPC1-7):04Q3/42;04Q3/72
主分类号
H04Q3/54
代理机构
代理人
主权项
地址
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