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发明名称
ELECTRON BEAM OPENING ANGLE CONTROL DEVICE IN ELECTRON MICROSCOPE
摘要
申请公布号
JPH01159943(A)
申请公布日期
1989.06.22
申请号
JP19870317201
申请日期
1987.12.15
申请人
JEOL LTD
发明人
MATSUTANI MIYUKI;MIYOKAWA TOSHIAKI
分类号
H01J37/141;H01J37/04
主分类号
H01J37/141
代理机构
代理人
主权项
地址
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