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发明名称
CIRCUIT ARRANGEMENT FOR PRIVATE AUTOMATIC BRANCH EXCHANGES
摘要
申请公布号
GB1201417(A)
申请公布日期
1970.08.05
申请号
GB19680033040
申请日期
1968.07.11
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
H04Q3/62
主分类号
H04Q3/62
代理机构
代理人
主权项
地址
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