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发明名称
DISPOSITIF D'ARRET DU COURANT D'APPEL DANS UN CENTRAL TELEPHONIQUE
摘要
申请公布号
BE764519(A1)
申请公布日期
1971.08.16
申请号
BE19710764519
申请日期
1971.03.19
申请人
TELEFON A.B. L M ERICSSON, STOCKHOLM 32, (SUEDE),
发明人
分类号
H04M1/26;H04M19/02;(IPC1-7):H04M/
主分类号
H04M1/26
代理机构
代理人
主权项
地址
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