发明名称 Ball with a passive sound device
摘要 The present invention is a toy sound producing ball, having a ball portion, such as a foam football, joined with a passive sound device, such as a whistle, which produces sound when air travels relative to the sound device, wherein the whistle is joined to the interior or exterior of the ball portion.
申请公布号 US5253866(A) 申请公布日期 1993.10.19
申请号 US19910731865 申请日期 1991.07.18
申请人 TONKA CORPORATION 发明人 MOORMAN, RANDALL H.;MA, HANSAN
分类号 A63B43/00;(IPC1-7):A63B43/02 主分类号 A63B43/00
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