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发明名称
Schaltungsanordnung zur Anschaltung einer anrufenden Abzweigstelle an eine Gesellschaftsleitung in Fernmelde-, insbesondere Fernsprechanlagen
摘要
申请公布号
DE710971(C)
申请公布日期
1941.09.24
申请号
DE1938S131445D
申请日期
1938.03.27
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
SCHWARTZ ROMAN
分类号
H04Q5/14
主分类号
H04Q5/14
代理机构
代理人
主权项
地址
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