FIELD: hygiene. SUBSTANCE: device has handle, neck and curved head carrying bristle inclined at an angle to the longitudinal axis of the head. The head is prismatic in shape providing access of the bristle to different tooth surfaces. EFFECT: enhanced effectiveness in cleaning teeth. 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TOOTH-BRUSH | 1992 |
|
RU2041691C1 |
| TOOTH BRUSH | 1992 |
|
RU2048139C1 |
| TOOTH-BRUSH | 1992 |
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RU2043057C1 |
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RU2039509C1 |
| TOOTH-BRUSH | 1992 |
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RU2039506C1 |
| TOOTH-BRUSH | 0 |
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SU1722434A1 |
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RU2049416C1 |
| TOOTH BRUSH | 1992 |
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RU2039505C1 |
| TOOTH-BRUSH | 1992 |
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| TOOTH-BRUSH | 1992 |
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RU2043053C1 |
