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经营范围
发明名称
High frequency coupling and modulating apparatus
摘要
申请公布号
US2806172(A)
申请公布日期
1957.09.10
申请号
US19510216320
申请日期
1951.03.19
申请人
RADIO CORPORATION OF AMERICA
发明人
CUCCIA CARMEN L.
分类号
H01J25/00;H03C1/30
主分类号
H01J25/00
代理机构
代理人
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地址
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