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发明名称
Radio-frequency apparatus
摘要
申请公布号
US2458684(A)
申请公布日期
1949.01.11
申请号
US19460669551
申请日期
1946.05.14
申请人
STEVENS-ARNOLD INC.
发明人
CRANDELL ERVIN L.
分类号
H05B6/50
主分类号
H05B6/50
代理机构
代理人
主权项
地址
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