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经营范围
发明名称
Gegensprechanlage mit Lautsprechbetrieb
摘要
申请公布号
DE905145(C)
申请公布日期
1954.02.25
申请号
DE1951L011022
申请日期
1951.12.11
申请人
LICENTIA PATENT-VERWALTUNGS-G.M.B.H.
发明人
BODENSCHATZ DR.-ING. HEINRICH
分类号
H04M9/08
主分类号
H04M9/08
代理机构
代理人
主权项
地址
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