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发明名称
Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb und mehreren Vermittlungsstellen
摘要
申请公布号
DE492737(C)
申请公布日期
1930.02.28
申请号
DE1926S075068D
申请日期
1926.06.26
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
PINELL WALTER
分类号
H04Q1/32
主分类号
H04Q1/32
代理机构
代理人
主权项
地址
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