发明名称 Brush tip for a motorized toothbrush
摘要 A brush tip for a motorized toothbrush has a first brush head and a second brush head. The second brush head encircles the first brush head. Means are provided for differently accelerating the first and second brush heads in response to motion produced by the toothbrush motor.
申请公布号 US6349442(B1) 申请公布日期 2002.02.26
申请号 US19990338750 申请日期 1999.06.23
申请人 ADVANCED PROSTHETIC TECHNOLOGIES, INC. 发明人 COHEN HOWARD;BIRO LADISLAU
分类号 A61C17/00;A61C17/22;A61C17/34;(IPC1-7):A46B13/02 主分类号 A61C17/00
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