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发明名称
Frequency converter tube
摘要
申请公布号
US2837673(A)
申请公布日期
1958.06.03
申请号
US19550482024
申请日期
1955.01.17
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
QUIGLEY FRANCIS THOMAS;BISSO ROBERT J.
分类号
H01J21/02
主分类号
H01J21/02
代理机构
代理人
主权项
地址
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