Quem sabe podemos aprimorar adaptando um sistema de movimento e vibração
original da patente:
The chair comprises seat (12), legs (10, 11), a first back rest
(15) and a second back rest (16), wherein the back rests are facing
each other to support the back of a first user seated on the seat
(12) and the back of a second user sitting astride the first user.
Modifications of the basic design include: (Fig. 4) a table top
attached to back (13), (Fig. 5) a tiltable backrest, (Fig. 6)
a stepped sitting surface, (Fig. 7) a removable backrest and (Fig.
8) adjustable separation between the backrests. GB2283412