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发明名称
VERRIEGELUNGSSCHALTUNG ZUR VORBEUGUNG DES STÖRENS VON FERNSPRECHERLINIENSIGNALEN
摘要
申请公布号
AT152565(T)
申请公布日期
1997.05.15
申请号
AT19900903280T
申请日期
1990.01.31
申请人
HARRIS CORPORATION
发明人
BENJAMIN, DEAN, L.;WONG, WAYNE, K.
分类号
H04M1/24;H04M3/30;H04Q1/44;H04Q1/442;(IPC1-7):H04M1/24
主分类号
H04M1/24
代理机构
代理人
主权项
地址
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