Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B31
MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
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B31B
MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
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2100/00
Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
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B31B2100/002
characterised by the shape of the blank from which they are formed
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B31B2100/0028
made by first folding a sheet to a U-shape, constituting the bottom and two first side walls, after which the two other side walls are formed from these first side walls
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