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经营范围
发明名称
Progressive power lens
摘要
申请公布号
GB2274177(A)
申请公布日期
1994.07.13
申请号
GB19930025082
申请日期
1993.12.07
申请人
* GENTEX OPTICS INC.
发明人
RICHARD P * WAIDO
分类号
G02C7/02;(IPC1-7):G02C7/06
主分类号
G02C7/02
代理机构
代理人
主权项
地址
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