Chair or armchair

Chair provided with a backrest

Chair seat cushion and chair seat with such a cushion

Chair shell

Chair shell with integral hollow contoured support

Chair shell with selective back stiffening

Chair structure

Chair structure

Chair structure

Chair with a seat-supporting unit capable of resisting left and

Chair with bight formed in leg

Chair with chair back attachment

Chair with removable sling

Chair with rod frame back assembly

Chair with seat support brackets

Chair without a back/a stool

Chair, and methods of constructing and utilizing same

Chair, in particular office chair

Chairs

Chairs and method for making same