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发明名称
Duplex radio system
摘要
申请公布号
US2410641(A)
申请公布日期
1946.11.05
申请号
US19410413423
申请日期
1941.10.03
申请人
RADIO CORPORATION
发明人
EVANS JOHN
分类号
H01J17/04
主分类号
H01J17/04
代理机构
代理人
主权项
地址
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