| 发明名称 |
Method and means for removing dental plaque by ultrasonic vibrations |
| 摘要 |
The oral cavity containing a fluid may be employed as a resonance chamber for ultrasonic frequencies applied to the fluid to remove dental plaque.
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| 申请公布号 |
US4071956(A) |
申请公布日期 |
1978.02.07 |
| 申请号 |
US19760668680 |
申请日期 |
1976.03.19 |
| 申请人 |
ANDRESS, JOHN BARNEY |
发明人 |
ANDRESS, JOHN BARNEY |
| 分类号 |
A61C17/20;(IPC1-7):A61H9/00 |
主分类号 |
A61C17/20 |
| 代理机构 |
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