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Improved roller shutter, characterized in that it is composed of articulated slats so that they can make a limited turn and move longitudinally to each other, each of whose slats consists of a hollow profile that extends on one of its sides in a flat wing terminated in a tubular bead, while its opposite side has a longitudinal groove in which the opposite bead of an adjacent board can be received, said bead being interrupted in spaced points of its length, where the ends of a block are coupled in its hollow. spigot whose central part extends into a protruding plate by the notch interrupting the staff and ending in an arrowhead that engages the inner edges of a corresponding cut, formed in the bottom of the slot of an adjacent splint. (Machine-translation by Google Translate, not legally binding)
Improvements implemented in the manufacture of tables for roller blinds and of the unión elements between them (Machine-translation by Google Translate, not legally binding)