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发明名称
Improvements in or relating to two-way communication telephone systems
摘要
申请公布号
GB965186(A)
申请公布日期
1964.07.29
申请号
GB19620001763
申请日期
1962.01.17
申请人
MODERN TELEPHONES (GREAT BRITAIN) LIMITED;MICHAET MILLETT
发明人
分类号
H04M9/08
主分类号
H04M9/08
代理机构
代理人
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