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经营范围
发明名称
Coupling system
摘要
申请公布号
US1965640(A)
申请公布日期
1934.07.10
申请号
US19310555510
申请日期
1931.08.06
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
GULLNER GEORG
分类号
H01F21/04
主分类号
H01F21/04
代理机构
代理人
主权项
地址
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