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发明名称
Improvements in or relating to communications systems
摘要
申请公布号
GB1137498(A)
申请公布日期
1968.12.18
申请号
GB19660020799
申请日期
1966.05.11
申请人
THE RUCKER COMPANY
发明人
分类号
G10L11/02;H04B7/02
主分类号
G10L11/02
代理机构
代理人
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