发明名称 Plaque remover
摘要 A tooth cleaning instrument mounted at one end of a handle comprising a tapered blade of plastics material having a blunt apex folded about a base to apex line and inclined to the axis of the handle, the arrangement allowing all outer surfaces of the teeth as well as the spaces between them to be scraped to remove plaque and tartar. The other end of the handle can include a brush.
申请公布号 US4449934(A) 申请公布日期 1984.05.22
申请号 US19810318237 申请日期 1981.11.04
申请人 UNISPLAY, S.A. 发明人 SALAM, HASSAN P. A.
分类号 A61C17/00;(IPC1-7):A61C17/00 主分类号 A61C17/00
代理机构 代理人
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