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发明名称
Verfahren zur Erzeugung von progressiven Zusatzlinsen.
摘要
申请公布号
DE3789355(T2)
申请公布日期
1994.11.17
申请号
DE19873789355T
申请日期
1987.11.24
申请人
POLYCORE OPTICAL PTE. LTD., SINGAPORE, SG
发明人
SILVA, DONALD E., SINGAPORE 1334, SG
分类号
G02C7/06;G02C7/02;(IPC1-7):G02C7/02
主分类号
G02C7/06
代理机构
代理人
主权项
地址
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