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发明名称
ELECTROSTATIC LENS
摘要
申请公布号
JPH10241616(A)
申请公布日期
1998.09.11
申请号
JP19970041895
申请日期
1997.02.26
申请人
HITACHI LTD
发明人
NOMURA SADAO
分类号
H01J3/18;H01J37/12;(IPC1-7):H01J37/12
主分类号
H01J3/18
代理机构
代理人
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地址
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