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发明名称
ARRANGEMENT OF CIRCUITS FOR IDENTIFICATION AND ACCOUNTING IN AUTOMATIC EXCHANGES
摘要
申请公布号
GB1216410(A)
申请公布日期
1970.12.23
申请号
GB19680020595
申请日期
1968.05.01
申请人
SOCIETA' ITALIANA TELECOMUNICAZIONI SIEMENS S.P.A.
发明人
分类号
H04M15/04;H04M15/08
主分类号
H04M15/04
代理机构
代理人
主权项
地址
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