| 发明名称 |
TOOTHBRUSH WITH PRESSURE INDICATOR |
| 摘要 |
A toothbrush incorporating an indicator comprising a pressure indicating material which provides an optical signal without the provision of a power supply. Preferably, the pressure sensitive material is a piezochromic material, such as a liquid crystal cholesterol ester.
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| 申请公布号 |
WO9905935(A1) |
申请公布日期 |
1999.02.11 |
| 申请号 |
WO1998EP04998 |
申请日期 |
1998.07.23 |
| 申请人 |
UNILEVER PLC;UNILEVER N.V. |
发明人 |
DAVIES, RICHARD, HUW;SAVILL, DEREK, GUY |
| 分类号 |
A46B15/00;(IPC1-7):A46B15/00 |
主分类号 |
A46B15/00 |
| 代理机构 |
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