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发明名称
Improvements in or relating to control apparatus for communication systems
摘要
申请公布号
GB796223(A)
申请公布日期
1958.06.11
申请号
GB19530016459
申请日期
1953.06.15
申请人
HER MAJESTY'S POSTMASTER GENERAL
发明人
HARRIS LIONEL ROY FRANK
分类号
H04Q11/04
主分类号
H04Q11/04
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代理人
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