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发明名称
Progressive power omnifocal lens
摘要
申请公布号
US4934808(A)
申请公布日期
1990.06.19
申请号
US19880226410
申请日期
1988.07.29
申请人
HOYA CORPORATION
发明人
KITANI, AKIRA
分类号
G02C7/06;G02C7/02
主分类号
G02C7/06
代理机构
代理人
主权项
地址
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