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发明名称
Système téléphonique tout-relais
摘要
申请公布号
FR65373(E)
申请公布日期
1956.02.09
申请号
FRD65373
申请日期
1952.08.01
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
VOLLENSCHIER FRITZ
分类号
H04M3/523;H04Q3/00;H04Q3/42
主分类号
H04M3/523
代理机构
代理人
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