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发明名称
Improvements in or relating to time division multiplex telecommunications exchange systems
摘要
申请公布号
GB1085933(A)
申请公布日期
1967.10.04
申请号
GB19650039159
申请日期
1965.09.14
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
分类号
H04J3/20;H04Q11/04
主分类号
H04J3/20
代理机构
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