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发明名称
Nouveau type de chercheur de lignes pour la commutation téléphonique
摘要
申请公布号
FR931431(A)
申请公布日期
1948.02.23
申请号
FRD931431
申请日期
1946.07.26
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
DELORAINE EDMOND MAURICE;RANSOM DAVID HIRAM
分类号
H04Q3/52;H04Q11/04
主分类号
H04Q3/52
代理机构
代理人
主权项
地址
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