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发明名称
Schaltungsanordnung fuer Fernsprechwaehlanlagen mit Fernleitungsbetrieb
摘要
申请公布号
DE894569(C)
申请公布日期
1953.10.26
申请号
DE1938I003356D
申请日期
1938.01.26
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
WRIGHT ESMOND PHILIP GOODWIN;NEILSON CHRISTOPHER BERNARD VERE
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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