发明授权
US5044035A Dental cleaning device 失效
牙科清洁装置

Dental cleaning device
摘要:
An electrically-operated plaque-removing dental cleaning machine provided with an elongated rotating brush shaft having helical brush tufts strips thereon, and a partial shield spaced from the brush strips for collecting particles dislodged from the teeth when the brush strips engage and sweep the teeth and the inter-dental areas.
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