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经营范围
发明名称
Improvements in electromagnetic scanning circuits employing thermionic valves
摘要
申请公布号
GB634442(A)
申请公布日期
1950.03.22
申请号
GB19460033856
申请日期
1946.11.14
申请人
PHILCO CORPORATION
发明人
分类号
H03K4/28
主分类号
H03K4/28
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代理人
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