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发明名称
TUBO A RAGGI CATODICI
摘要
申请公布号
IT1032730(B)
申请公布日期
1979.06.20
申请号
IT19750068028
申请日期
1975.04.21
申请人
PHILIPS NV
发明人
分类号
H01J29/48;H01J29/56;H01J29/62;H01J29/82;(IPC1-7):H01J29/48
主分类号
H01J29/48
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代理人
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