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发明名称
DARK FIELD VICWING APPARATUS
摘要
申请公布号
GB2074318(B)
申请公布日期
1985.01.16
申请号
GB19810009268
申请日期
1981.03.24
申请人
NATIONAL RESEARCH DEVELOPMENT CORP
发明人
分类号
G01H3/12;G01N29/06;G02B27/50;(IPC1-7):G01N29/00;G03H1/04
主分类号
G01H3/12
代理机构
代理人
主权项
地址
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