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经营范围
发明名称
Radio transmitting and receiving system
摘要
申请公布号
US2069513(A)
申请公布日期
1937.02.02
申请号
US19340755286
申请日期
1934.11.30
申请人
RADIO CORPORATION
发明人
WOLFF IRVING
分类号
H01Q21/10
主分类号
H01Q21/10
代理机构
代理人
主权项
地址
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