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发明名称
Envelope structure for electron tubes
摘要
申请公布号
US2633551(A)
申请公布日期
1953.03.31
申请号
US19500199075
申请日期
1950.12.04
申请人
MACHLETT LABORATORIES, INCORPORATED
发明人
DOOLITTLE HOWARD D.
分类号
H01J21/36
主分类号
H01J21/36
代理机构
代理人
主权项
地址
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