B65D5/5026 - CPC Classification

Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper; Details of containers or of foldable or erectable container blanks; Integral, inserted or attached portions forming internal or external fittings; Internal supporting or protecting elements for contents; Integral elements for containers of other type, e.g. formed by folding a blank to U-shape Hollow frame-like elements surrounding the object

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