| 摘要 |
<p>An electric tooth-brush has a head portion studded with brush threads, and a grip portion removably coupled thereto. The grip portion accomodates a battery and carries an electrically conductive bar which has one end connected to the battery and the other end projecting outwardly from one end of the grip portion. The top surface of the grip portion is mounted with an electrically conductive cover which is connected to the battery.</p> |
