Books – strips – and leaves – Strips
Patent
1988-05-23
1990-03-06
Grosz, Alexander
Books, strips, and leaves
Strips
281 2, 283 34, B42D 1900
Patent
active
049060244
ABSTRACT:
A foldable sheet of rectangular shape which can be folded by a plurality of folding edges intersecting at right-angles and by slits or slots which proceed from the center of the sides of a rectangular central portion which is surrounded by edge and corner foldable portions. In the unfolded state different foldable portions which belong partially to the front and partially to the back of the foldable sheet can be combined and to increase possible combinations, the central portion has between two opposing slits or slots folding edges intersecting at its center and one of the two folding edges of each corner foldable portion is cut to form a slit or slot, so that book-like folds can be formed in which the individual leaves can be combined by appropriate unfolding and refolding in varied ways.
REFERENCES:
patent: 2572460 (1951-10-01), Falk
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