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发明名称
Improvements in or relating to wired broadcasting systems
摘要
申请公布号
GB674767(A)
申请公布日期
1952.07.02
申请号
GB19490025079
申请日期
1949.09.29
申请人
COMMUNICATIONS PATENTS LIMITED
发明人
TATE CLIFFORD EDWARD
分类号
H04H20/77
主分类号
H04H20/77
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