FIELD: medical engineering; hygiene. SUBSTANCE: device has handle, neck, head with bristle and a spring. The spring is conic and mounted on the device neck so, that its tip points to the handle. EFFECT: enhanced effectiveness in cleaning teeth. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TOOTH BRUSH | 1992 |
|
RU2048133C1 |
| TOOTH BRUSH | 1991 |
|
RU2013980C1 |
| TOOTH-BRUSH | 1990 |
|
RU2032365C1 |
| TOOTH-BRUSH | 1993 |
|
RU2043049C1 |
| TOOTH BRUSH | 1992 |
|
RU2039495C1 |
| TOOTHBRUSH | 1992 |
|
RU2031620C1 |
| TOOTH BRUSH | 1992 |
|
RU2039483C1 |
| TOOTH-BRUSH | 1992 |
|
RU2043055C1 |
| TOOTH-BRUSH | 1992 |
|
RU2043051C1 |
| TOOTH BRUSH | 1992 |
|
RU2066968C1 |
