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经营范围
发明名称
Den Tunneleffekt ausnutzende Elektronenquelle
摘要
申请公布号
DE1281587(B)
申请公布日期
1968.10.31
申请号
DE1964G041250
申请日期
1964.08.03
申请人
GENERAL ELECTRIC COMPANY
发明人
APKER LEROY
分类号
H01J1/308;H01L27/00
主分类号
H01J1/308
代理机构
代理人
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地址
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