with balancing device, e.g. by spring, by weight

Full Title

Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats > Chairs or stools with vertically-adjustable seats > with balancing device, e.g. by spring, by weight

Classification Context

Section:

HUMAN NECESSITIES

Class:

FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL

Subclass:

CHAIRS; SOFAS; BEDS