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经营范围
发明名称
Mehrgliedruge, regelbare Tonblende fuer Empfaenger und Verstaerker
摘要
申请公布号
DE685673(C)
申请公布日期
1939.12.22
申请号
DE1936T046719D
申请日期
1936.04.07
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H03G5/06
主分类号
H03G5/06
代理机构
代理人
主权项
地址
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