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发明名称
CATHODE HEATER FOR ELECTRON TUBE
摘要
申请公布号
JPS6471032(A)
申请公布日期
1989.03.16
申请号
JP19870226316
申请日期
1987.09.11
申请人
HITACHI LTD
发明人
YAMAUCHI TOSHIYASU
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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