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发明名称
BEAM SPOT SCANNING DEVICE
摘要
申请公布号
GB2069713(B)
申请公布日期
1984.10.10
申请号
GB19810002546
申请日期
1981.01.28
申请人
CANON KK
发明人
分类号
G02F1/335;(IPC1-7):G02F1/33
主分类号
G02F1/335
代理机构
代理人
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