| 摘要 |
FIELD: personal use articles.SUBSTANCE: on the toothbrush head an elongated bundle of bristles is formed, partially covering one area, and a bundle of complementary shape located in the area partially covered. The elongated bundle and the complementary bundle have the profiles inclined at different angles, and also preferably in different directions.EFFECT: higher quality of cleaning teeth.14 cl, 4 dwg |
