| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the bulk of a PET bottle for convenience of transportation for solving the problem that the PET bottle is bulky and inconvenient in collection after use. <P>SOLUTION: A recess and a protrusion are formed on the internal side of the PET bottle, and the recess and the protrusion are fitted with each other to reduce the bulk of the bottles. Also, by changing the size or the number of the recess and the protrusion, this method can be applied to a variety of shapes and sizes of the bottles. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
