Design Feature:
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(1) Moiré surfaces or backgrounds, marble, degrading surfaces, wooden-like surfaces
(2) Other irregular parallelograms, trapezia and quadrilaterals
(3) Several quadrilaterals juxtaposed, joined or intersecting
(4) Letters or numerals forming any other quadrilateral (surface or periphery)
(5) One letter
(6) Letter “W”
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