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发明名称
PIERCE TYPE ELECTRON GUN
摘要
申请公布号
JPH11167888(A)
申请公布日期
1999.06.22
申请号
JP19970350162
申请日期
1997.12.05
申请人
NIKON CORP
发明人
YAMADA ATSUSHI
分类号
H01J37/06;H01J37/063;(IPC1-7):H01J37/063
主分类号
H01J37/06
代理机构
代理人
主权项
地址
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