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发明名称
Schaltungsanordnung zur Zeichengabe in Fernsprechanlagen
摘要
申请公布号
DE558299(C)
申请公布日期
1932.09.05
申请号
DE1928S083882D
申请日期
1928.02.01
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
ANDERS OTTO
分类号
H04Q3/00
主分类号
H04Q3/00
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代理人
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