TOOTHBRUSH HAVING BRISTLE ON BOTH SURFACES OF BRUSH BASE

PROBLEM TO BE SOLVED: To simultaneously clean the upper and lower teeth by burying the bristles on both surfaces of a brush base. SOLUTION: Bristles 1 of brushes are buried in both surfaces of a brush base 2 to simultaneously clean upper and lower teeth. The upper and lower teeth can be simultaneous...

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1. Verfasser: KITAMADO FUJIO
Format: Patent
Sprache:eng
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