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经营范围
发明名称
Fernsprechanlage mit Waehlerbetrieb
摘要
申请公布号
DE872365(C)
申请公布日期
1953.03.30
申请号
DE1938T001030D
申请日期
1938.02.09
申请人
TELEFONBAU UND NORMALZEIT G.M.B.H.
发明人
WIRTH ALEXANDER
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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