LUNCH BOX, LUNCH BOX SET, AND METHOD FOR SELECTING LUNCH BOX

摘要

PROBLEM TO BE SOLVED: To provide a lunch box in which you merely set food for diet, and a method for selecting the lunch box.;SOLUTION: The areas of the bottom of three storage parts formed in the lunch box has a substantial ratio of 1:2:3.;COPYRIGHT: (C)2006,JPO&NCIPI