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发明名称
Volume control
摘要
申请公布号
US2243412(A)
申请公布日期
1941.05.27
申请号
US19390253122
申请日期
1939.01.27
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
BRUCK LOTHAR
分类号
H03G3/08
主分类号
H03G3/08
代理机构
代理人
主权项
地址
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