Folded sheet

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G - Physics

09

B

281/12

G09B 29/04 (2006.01)

Patent

CA 1320233

ABSTRACT A sheet of paper or like material has a first set of concertina folds and, so as to be transverse to these when the sheet is folded with these folds, a second set of concertina folds, the sheet i being provided with two stiff portions at diagonally opposite corner segments of the sheet, whereby the sheet can be unfolded with a single movement and possibly using only one hand to grasp and unfold the sheet.

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