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发明名称
TRANSMISSION TYPE ELECTRON MICROSCOPE APERTURE AND ITS MANUFACTURE
摘要
申请公布号
JPH0628992(A)
申请公布日期
1994.02.04
申请号
JP19920206232
申请日期
1992.07.10
申请人
NEC CORP
发明人
SASAOKA CHIAKI
分类号
H01J9/14;H01J37/09;(IPC1-7):H01J37/09
主分类号
H01J9/14
代理机构
代理人
主权项
地址
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