发明名称 Evacuating rubber dam frame
摘要 An evacuating rubber dam frame for supporting a rubber dam adjacent to the mouth of a dental patient comprises a frame containing a hollow portion, said hollow portion having means for gathering in any fluid collected by said rubber dam, and means for removal of the fluid gathered into said hollow portion.
申请公布号 US4261697(A) 申请公布日期 1981.04.14
申请号 US19800121841 申请日期 1980.02.15
申请人 NEWITTER, DAVID A. 发明人 NEWITTER, DAVID A.
分类号 A61C5/12;A61C17/08;(IPC1-7):A61C5/14 主分类号 A61C5/12
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