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发明名称
Cathode
摘要
申请公布号
US2872611(A)
申请公布日期
1959.02.03
申请号
US19530392115
申请日期
1953.11.16
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
KERSTETTER DONALD R.
分类号
H01J1/20
主分类号
H01J1/20
代理机构
代理人
主权项
地址
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