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经营范围
发明名称
FELDEMISSIONS-ELEKTRONENKANONE
摘要
申请公布号
DE2116014(B2)
申请公布日期
1977.01.27
申请号
DE19712116014
申请日期
1971.04.01
申请人
发明人
分类号
H01J37/06;H01J37/073;(IPC1-7):H01J3/02
主分类号
H01J37/06
代理机构
代理人
主权项
地址
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