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经营范围
发明名称
Radio spectrum monitoring apparatus
摘要
申请公布号
US2496560(A)
申请公布日期
1950.02.07
申请号
US19450631190
申请日期
1945.11.27
申请人
RAYMOND RICHARD C
发明人
RAYMOND RICHARD C.
分类号
H03J7/32
主分类号
H03J7/32
代理机构
代理人
主权项
地址
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