| http://www.w3.org/ns/prov#value | - Another object is to provide a disposable bag of the character indicated in which the mouth of the bag is provided with an envelope of relatively heavy material such as cardboard or the like, the cardboard embodying at least three sides, but preferably four, joined to each other along fold lines, and at least one of the sides, preferably two opposite ones, being capable of bending intermediate its
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