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经营范围
发明名称
Small aperture multifocal
摘要
申请公布号
IE901372(A1)
申请公布日期
1991.02.13
申请号
IE19900001372
申请日期
1990.04.18
申请人
ALLEN L. COHEN
发明人
ALLEN L. COHEN
分类号
G02C7/04;G02B3/08;G02B5/18;G02C7/06;(IPC1-7):G02B5/18
主分类号
G02C7/04
代理机构
代理人
主权项
地址
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