发明名称 Hollow tubular device to assist patients during speech therapy
摘要 A hollow tubular device to assist patients during speech therapy a main body portion of a tubular configuration having a hollow interior with an interior surface and having an exterior surface, the main body portion being formed of a plastic material; a pair of parallel end caps at each end of the main body portion, the end caps being circular in shape with a thickness essentially the same thickness as the side wall; and an centrally disposed aperture extending through each end cap.
申请公布号 US5507648(A) 申请公布日期 1996.04.16
申请号 US19940285090 申请日期 1994.08.03
申请人 KNOPF, JONATHAN D. 发明人 KNOPF, JONATHAN D.
分类号 G09B19/04;(IPC1-7):G09B19/04;G10B3/08 主分类号 G09B19/04
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