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发明名称
Self-opening spectacle frame
摘要
The invention is directed to a self-opening spectacle frame wherein the spectacle temples are opened into the position for use via an elastic element with the elastic element not being visible in this position.
申请公布号
US4932771(A)
申请公布日期
1990.06.12
申请号
US19890336915
申请日期
1989.04.12
申请人
MARWITZ & HAUSER GMBH
发明人
NOWOTTNY, NORBERT
分类号
G02C5/16;G02C5/22
主分类号
G02C5/16
代理机构
代理人
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