AUTOMATIC LIQUID-SPRAYING ELECTRIC TOOTHBRUSH, COPPER-FREE BRISTLE IMPLANTATION METHOD, AND CONTROL METHOD
The present invention provides an automatic liquid-spraying electric toothbrush, a copper-free bristle implantation method, and a control method, and belongs to the technical field of oral cavity cleaning devices. The automatic liquid-spraying electric toothbrush of the embodiments of the present in...
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Format: | Patent |
Sprache: | chi ; eng ; fre |
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