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发明名称
Improvements in or relating to telecommunications exchange systems
摘要
申请公布号
GB1031788(A)
申请公布日期
1966.06.02
申请号
GB19630029900
申请日期
1963.07.29
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
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代理人
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