发明名称 Dental lip retractor
摘要 A dental retractor comprising a substantially U-shaped strip and an elongated handle. The U-shaped strip has a top edge and a bottom edge. Each of the top and bottom edges forms a substantially U-shape, wherein the U-shape formed by the bottom edge is smaller than the U-shape formed by the top edge. The elongated handle has a distal end of the handle attached to the U-shaped strip at a substantially trough point of the U-shaped strip.
申请公布号 US6964570(B2) 申请公布日期 2005.11.15
申请号 US20030389585 申请日期 2003.03.17
申请人 GHIM STEVEN H 发明人 GHIM STEVEN H.
分类号 A61C5/14;(IPC1-7):A61C5/00 主分类号 A61C5/14
代理机构 代理人
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