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发明名称
VARIABLE RADIO FREQUENCY ATTENUATOR
摘要
申请公布号
CA834353(A)
申请公布日期
1970.02.10
申请号
CAD834353
申请日期
申请人
RCA CORPORATION
发明人
LEOPOLD A. HARWOOD
分类号
主分类号
代理机构
代理人
主权项
地址
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