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ELECTRIC TOOTHBRUSH

  • US 20180333240A1
  • Filed: 04/19/2018
  • Published: 11/22/2018
  • Est. Priority Date: 05/18/2017
  • Status: Active Grant
First Claim
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1. An electric toothbrush comprising:

  • a shaft to which a brush is attached;

    a primary drive unit that operates the shaft to let the brush perform a cleaning motion; and

    a supplementary drive unit that enables the shaft to move eccentrically.

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