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发明名称
Blocking shim and method for prescription-laboratory processing of aspheric progressive-addition lenses
摘要
申请公布号
US4942696(A)
申请公布日期
1990.07.24
申请号
US19880204567
申请日期
1988.06.09
申请人
AMERICAN OPTICAL CORPORATION
发明人
WINTHROP, JOHN T.;MENYHART, ALEXANDER F.;DUSZLAK, JAMES
分类号
B23Q3/06;B24B13/005;G02C7/02;G02C7/06
主分类号
B23Q3/06
代理机构
代理人
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地址
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