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经营范围
发明名称
Frequency discriminator
摘要
申请公布号
US2804546(A)
申请公布日期
1957.08.27
申请号
US19540449291
申请日期
1954.08.12
申请人
ESSO RESEARCH AND ENGINEERING COMPANY
发明人
WISCHMEYER CARL R.
分类号
H03D3/08
主分类号
H03D3/08
代理机构
代理人
主权项
地址
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