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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
GB1075006(A)
申请公布日期
1967.07.12
申请号
GB19650039160
申请日期
1965.09.14
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
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