| 摘要 |
PROBLEM TO BE SOLVED: To provide a clean and easily openable can. SOLUTION: A spring work is given to a portion of a cover plate becoming a drinking opening of the easily openable can. When the outer circumference of the cover plate is cut and separated for opening, the cover plate of the drinking portion rolls up by elasticity of the spring to be compactly accommodated in the can. COPYRIGHT: (C)2009,JPO&INPIT
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