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发明名称
Apparatus employing cavity resonators
摘要
申请公布号
US2445236(A)
申请公布日期
1948.07.13
申请号
US19440547010
申请日期
1944.07.28
申请人
RADIO CORPORATION
发明人
NERGAARD LEON S.
分类号
H01J21/06
主分类号
H01J21/06
代理机构
代理人
主权项
地址
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