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Folding chair characterized in that it consists of two tubular frames that make up its legs and arms joined by two articulated plate blades so that they can rotate on fixed bolts at the bottom of the legs and in the crisscrossing part of the plates while that the upper ends are linked and articulated to bars provided with trunnions that enter and slide along grooves made in the frame tube, these grooves being forged by an inward flanging of the tube, being the seat and the backrest flexible, this one being armed on two plates that it has on its sides and that are attached to the armrests of the chair by means of sliding rings along the tube. (Machine-translation by Google Translate, not legally binding)
ES107135U1964-07-061964-07-06
A FOLDING ARMCHAIR.
ExpiredES107135Y
(en)
Improvements in the construction of mechanisms for the transformation of chairs in stairs (Machine-translation by Google Translate, not legally binding)