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经营范围
发明名称
Improvements in or relating to Telecommunications Systems.
摘要
申请公布号
GB1187958(A)
申请公布日期
1970.04.15
申请号
GB19670029804
申请日期
1967.06.28
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
分类号
H04M11/06
主分类号
H04M11/06
代理机构
代理人
主权项
地址
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