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发明名称
Improvements in and relating to automatic connection exchanges, e.g., telephone exchanges
摘要
申请公布号
GB443313(A)
申请公布日期
1936.02.26
申请号
GB19350004679
申请日期
1935.02.13
申请人
MORTEN BALTHAZAR RICHTER
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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