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发明名称
AID VISION SPECTACCLES SPECIALLY NEAR VISION SPECTACLES
摘要
申请公布号
PT81704(B)
申请公布日期
1987.01.06
申请号
PT19850081704
申请日期
1985.12.18
申请人
WALTER STEINER
发明人
分类号
G02C1/04;G02C1/00;G02C1/02;G02C5/02;G02C5/04;G02C5/12;G02C5/14;G02C11/00;(IPC1-7):G02C1/00;G02C9/00
主分类号
G02C1/04
代理机构
代理人
主权项
地址
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