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发明名称
Method of making multifocal lenses
摘要
申请公布号
US3248194(A)
申请公布日期
1966.04.26
申请号
US19610161559
申请日期
1961.12.22
申请人
BAUSCH & LOMB INCORPORATED
发明人
MATTERN JOHN S.;PLUNKETT RICHARD G.
分类号
C03B23/22
主分类号
C03B23/22
代理机构
代理人
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