警示牌
- 总结
- The utility model provides a caution board including a rating plate, a luminous caution device, an acoustic caution device and a caution control unit. The utility model has the advantages that the caution board with an audible-visual device has a simple structure, and is easy to identify and available of providing caution information for the disabled by a plurality of means.
- 主要类别
- 生物医学
- 细分类别
- 医疗装置
- 其他
- SIU Kin-wai, Michael
- 国家/地区
- 中国内地
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