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发明名称
Hochfrequenz-Gegensprechgeraet
摘要
申请公布号
DE721860(C)
申请公布日期
1942.06.20
申请号
DE1939T052941D
申请日期
1939.10.17
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
HAHN DIPL.-ING. FRITZ
分类号
H04B1/50
主分类号
H04B1/50
代理机构
代理人
主权项
地址
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