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发明名称
Telephone circuit arrangements and p.b.x. systems
摘要
申请公布号
GB1029351(A)
申请公布日期
1966.05.11
申请号
GB19640016788
申请日期
1964.04.23
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
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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