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发明名称
Improvements in or relating to supply cathodes
摘要
申请公布号
GB746548(A)
申请公布日期
1956.03.14
申请号
GB19540006375
申请日期
1954.03.04
申请人
EGYESUELT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG
发明人
分类号
H01J1/28
主分类号
H01J1/28
代理机构
代理人
主权项
地址
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