B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
B60B33/00—Castors in general; Anti-clogging castors
B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
B60B33/021—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism combined with braking of castor wheel
Cadre de dispositif a usage medical ou paramedical de support roulant d'une personne, a roulettes facilement demontables, et dispositif ainsi equipe