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http://hdl.handle.net/10397/1991
| Title: | Caution plate | Other Title: | 警示牌 | Authors: | Siu, KWM | Issue Date: | 28-Nov-2007 | Source: | 中国专利 ZL 200620157173.5 | Abstract: | 本实用新型为一种警示牌，包括标牌，发光警示装置，发声警示装置及警示控制单元。本实用新型的优点在于该具有声光装置的警示牌，结构简单，易于识别，并能通过多种方式为残障人士提供警示信息。 | Publisher: | 中华人民共和国国家知识产权局 | Rights: | 专利权人: The Hong Kong Polytechnic University. |
| Appears in Collections: | Patent |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ZL200620157173.5.pdf | 228.45 kB | Adobe PDF | View/Open |
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