This devise is , relates to the book listed with variable chaeksangpan , to settle a number of books, monitors, etc. with a shelf of a bookcase , in the storage enabled books listed in the lower space of the drawer having a bookshelf , the upper side of the drawer (20) is a bracket 32 is mounted on one side of the coupling chaeksangpan chaeksangpan (30 ) and is to be moved in a horizontal plane , because the support leg up to the other side of the bottom chaeksangpan 34 are combined , the effect by a variety of positions to change the chaeksangpan efficiently utilize the interior space and to increase the ease of use there .
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