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发明名称
ELECTROMAGNETIC LENS SYSTEM
摘要
申请公布号
JPS636736(A)
申请公布日期
1988.01.12
申请号
JP19870153574
申请日期
1987.06.22
申请人
PHILIPS GLOEILAMPENFAB:NV
发明人
TOMASU CHISUHORUMU
分类号
H01J37/141;G01Q30/06;H01J37/14;H01J37/21
主分类号
H01J37/141
代理机构
代理人
主权项
地址
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