摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vessel which can be handled without anxiety by a woman, a children or an old person and with which an inexpensive commodity can be purchased. <P>SOLUTION: The upper part and bottom part of a container are formed in a hollow and a convex shape or a convex and a convex shape and a plurality of vessels is fixed in one piece by rotating each in the reverse direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI |