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经营范围
发明名称
Differentiating discharge tube
摘要
申请公布号
US2446260(A)
申请公布日期
1948.08.03
申请号
US19440547407
申请日期
1944.07.31
申请人
FARNSWORTH RESEARCH CORPORATION
发明人
CAWEIN MADISON
分类号
H04N5/10
主分类号
H04N5/10
代理机构
代理人
主权项
地址
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