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发明名称
DRAHTFUNKSYSTEM
摘要
申请公布号
DE2919223(A1)
申请公布日期
1979.11.29
申请号
DE19792919223
申请日期
1979.05.12
申请人
COMMUNICATIONS PATENTS LTD.
发明人
JOHN GARGINI,ERIC
分类号
H04H20/76;H04N7/10;H04N7/173;(IPC1-7):04H1/02;04N7/16
主分类号
H04H20/76
代理机构
代理人
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