Processes for making ethanol

Abstract

An ergonomic chair system constructed from a stable base holding a rocking balanced seating structure, provided with an adjustable suspended relaxing supple seat, allowing an independent balanced controlled and secured inclination by body weight only without help, effort or locking device. This chair system is especially intended for the use of ergonomic chairs and particularly well adapted to users with reduced mobility thanks to its ergonomic seat, its autonomous use and the possible secured accompanying in the chair from and to the standing up position for users. This chair system is realizable in all usual materials of furnishing.

Dependencies are inferred from the claim text.