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经营范围
发明名称
Vacuum tube
摘要
申请公布号
US2043724(A)
申请公布日期
1936.06.09
申请号
US19320639435
申请日期
1932.10.25
申请人
RAYTHEON PRODUCTION CORPORATION
发明人
ANDERSON HOMER G.
分类号
H01J7/18
主分类号
H01J7/18
代理机构
代理人
主权项
地址
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