| 摘要 |
PURPOSE: A symbol straw enabling users to recognize each straw using number symbols is provided to prevent the infection of various kinds of diseases through using straws together. CONSTITUTION: A symbol straw includes a straw(10), and pattern symbols formed on the outer surface of the straw. A user can recognize another user of the straw by the pattern symbols. The pattern symbols can use numbers(20), figures, and other types of symbols. The symbol straw can prevent the mixing of multiple straws when plural users are using the straws. |
