TETRA PAK

CARTONS MADE OF NON-VITREOUS, NON-METALLIC FLEXIBLE SHEET MATERIAL, WHICH CARTONS HAVE THE SHAPE OF A SUBSTANTIALLY REGULAR [ TETRAHEDRON, ] * PARALLELEPIPEDON, * EACH OF THE [ FOUR ] * SIX * SIDES OFWHICH IS A SUBSTANTIALLY REGULAR [ TRIANGLE; ] * RECTANGLE; * [ AND SHIPPING AND STORAGE CONTAINERS HAVING A HORIZONTAL CROSS-SECTION OF HEXAGONAL FORM FOR USE WITH THE AFORESAID CARTONS ]