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经营范围
发明名称
Variable frequency counter
摘要
申请公布号
US2604263(A)
申请公布日期
1952.07.22
申请号
US19470749849
申请日期
1947.05.22
申请人
RADIO CORPORATION OF AMERICA
发明人
MACSORLEY OLIN L.
分类号
H03K23/82
主分类号
H03K23/82
代理机构
代理人
主权项
地址
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