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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.
申请公布号
US2006176440(A1)
申请公布日期
2006.08.10
申请号
US20040415467
申请日期
2004.11.05
申请人
发明人
NG DAVE
分类号
G02C9/00
主分类号
G02C9/00
代理机构
代理人
主权项
地址
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