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发明名称
Schaltungsanordnung fuer selbsttaetige und halbselbsttaetige Fernsprechanlagen
摘要
申请公布号
DE575322(C)
申请公布日期
1933.04.27
申请号
DE1929I038257D
申请日期
1929.06.06
申请人
STANDARD ELEKTRIZITAETS-GESELLSCHAFT AKT.-GES.
发明人
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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