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发明名称
Schaltungsanordnung fuer Fernmelde-, insbesondere Fernsprechanlagen mit Gesellschaftsleitungen
摘要
申请公布号
DE696329(C)
申请公布日期
1940.09.20
申请号
DE193801S1531D
申请日期
1938.04.02
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
SCHWARTZ ROMAN
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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