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发明名称
Optical mask
摘要
申请公布号
GB2072863(A)
申请公布日期
1981.10.07
申请号
GB19810007734
申请日期
1981.03.12
申请人
HAJIME INDUSTRIES LTD
发明人
分类号
G01R13/20;(IPC1-7):G01R13/20
主分类号
G01R13/20
代理机构
代理人
主权项
地址
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