TOOTHBRUSH WITH MULTIPLE BRISTLE STATES
An oral hygiene device includes a head, a first bristle field, and a second bristle field. The head includes a first head portion and a second head portion. The first bristle field extends from the first head portion. The second bristle field extends from the second head portion. The first bristle f...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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