发明名称 |
Bridge for attaching auxiliary lenses |
摘要 |
An auxiliary spectacle apparatus is provided wherein auxiliary lenses have a mechanical bridge fastener for releasably engaging the bridge portion of the primary frames in a manner which provides security of attachment in all directions.
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申请公布号 |
US6474810(B1) |
申请公布日期 |
2002.11.05 |
申请号 |
US20000699391 |
申请日期 |
2000.10.31 |
申请人 |
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发明人 |
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分类号 |
G02C9/00;G02C9/04;(IPC1-7):G02C9/00 |
主分类号 |
G02C9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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