Improvements introduced in the couplings of seats and backrests for chairs and similar, characterized in that the contour of the pieces forming the seat and the backrest, in the part corresponding to the edge thereof, has a slit, in accordance with the outside of the frame of the chair, and whose edges have a tendency to converge, so that the coupling between the seat-backrest and said frame, is made by simple snap-fitting of the latter in said channel. (Machine-translation by Google Translate, not legally binding)
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