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发明名称
Système de commutation automatique applicable à la téléphonie
摘要
申请公布号
FR59526(E)
申请公布日期
1954.06.28
申请号
FRD59526
申请日期
1948.09.29
申请人
发明人
GOURRIEREC RENE-JEAN-JOSEPH LE
分类号
H04Q3/42
主分类号
H04Q3/42
代理机构
代理人
主权项
地址
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