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发明名称
Bureau secondaire automatique privé
摘要
申请公布号
FR1060540(A)
申请公布日期
1954.04.02
申请号
FRD1060540
申请日期
1952.07.23
申请人
TELEFONAKTIEBOLAGET L M ERICSSON
发明人
分类号
H04M11/02;H04M15/08
主分类号
H04M11/02
代理机构
代理人
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