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发明名称
ASTIGMATISM CORRECTING APPARATUS FOR SCANNING TYPE ELECTRON MICROSCOPE
摘要
申请公布号
JPS6252839(A)
申请公布日期
1987.03.07
申请号
JP19850189625
申请日期
1985.08.30
申请人
HITACHI LTD
发明人
YAMADA OSAMU
分类号
H01J37/153
主分类号
H01J37/153
代理机构
代理人
主权项
地址
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