Publication Registration: |
Wednesday, May 20, 1987 |
Design Feature:
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(1) Squares
(2) Quadrilaterals containing one or more letters
(3) Quadrilaterals with dark surfaces or parts of surfaces
(4) Other irregular parallelograms, trapezia and quadrilaterals, quadrilaterals containing one or more rounded corners
(5) Two quadrilaterals, one inside the other
(6) More than two quadrilaterals, inside one another
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Goods and Services Information
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