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发明名称
HEATER FOR ELECTRON TUBE
摘要
申请公布号
JPS6319730(A)
申请公布日期
1988.01.27
申请号
JP19860161807
申请日期
1986.07.11
申请人
HITACHI LTD
发明人
KUMADA SEIJI
分类号
H01J1/24
主分类号
H01J1/24
代理机构
代理人
主权项
地址
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