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经营范围
发明名称
OPTICAL CORRECTION LENS
摘要
申请公布号
GB1499304(A)
申请公布日期
1978.02.01
申请号
GB19760007908
申请日期
1976.02.27
申请人
HITACHI LTD
发明人
分类号
G02B3/04;H01J9/227;(IPC1-7):H01J9/22;H01J31/20
主分类号
G02B3/04
代理机构
代理人
主权项
地址
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