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发明名称
Cathode heater
摘要
申请公布号
US2919373(A)
申请公布日期
1959.12.29
申请号
US19570635203
申请日期
1957.01.22
申请人
EDGERTON, GERMESHAUSEN & GRIER, INC.
发明人
RILEY DANIEL F.;GOLDBERG SEYMOUR
分类号
H01J1/22
主分类号
H01J1/22
代理机构
代理人
主权项
地址
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