| 摘要 |
PROBLEM TO BE SOLVED: To provide a PET bottle with a recessed groove-utilization straw, which is capable of being used anywhere anytime. SOLUTION: The recessed groove utilization straw has a double tube structure obtained by joining a thick and long tube to a thin and short tube and fixing them, and responds to a PET bottle of 280 to 500 ml by changing the length of the thin and short tube. COPYRIGHT: (C)2009,JPO&INPIT
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