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发明名称
Improvements in or relating to indirectly heated cathodes
摘要
申请公布号
GB869186(A)
申请公布日期
1961.05.31
申请号
GB19600009659
申请日期
1960.03.18
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
TANNER ROY HENRY
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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