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发明名称
Radio communication system
摘要
申请公布号
US1968458(A)
申请公布日期
1934.07.31
申请号
US19310526653
申请日期
1931.03.31
申请人
EARL L. KOCH HOLDING CORPORATION
发明人
KOCH EARL L.
分类号
H04L5/06
主分类号
H04L5/06
代理机构
代理人
主权项
地址
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