| 摘要 |
<p>The invention provides a recording display for tracing the quality of a product, which can record! and display the using status of the product. It is composed of a shell ,a integrate circuit board, a stepper motor, change gears and a tag recorder. It is mainly used on home or industrial electrical appliances, such as air-condition or television. Consumers could acquire the quality assurance period (which may have different time limits according to different using status of a appliance.</p> |
