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发明名称
Nachrichtenuebertrahungsanlage mit Wechselsprechverkehr
摘要
申请公布号
DE730056(C)
申请公布日期
1943.01.06
申请号
DE1941L104352D
申请日期
1941.05.22
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
SHAW HUBERT R.
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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