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发明名称
Improvements in or relating to signal-switched telecommunication circuits
摘要
申请公布号
GB845409(A)
申请公布日期
1960.08.24
申请号
GB19560010929
申请日期
1956.04.10
申请人
TELEPHONE MANUFACTURING COMPANY LIMITED
发明人
ROMMEL FREDERICK EMIL
分类号
H04M9/08;H04M9/10
主分类号
H04M9/08
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代理人
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