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发明名称
X-RAY RESTRICTING PLATE FOR EXPOSURE
摘要
申请公布号
JPS6218024(A)
申请公布日期
1987.01.27
申请号
JP19850156110
申请日期
1985.07.17
申请人
CANON INC
发明人
KAWAI YASUO
分类号
G03F7/20;H01L21/027;H01L21/30
主分类号
G03F7/20
代理机构
代理人
主权项
地址
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