Medical apparatus and instruments, namely, [ invalid walkers, walking aids, walking and ] standing frames, [ walking frames with wheels and seat, ] movable, tiltable standing frames for prone or supine standing, and structural parts and accessories therefor, namely, frames, backrests, footrests, wheels, hubs, tires, hand rims, wheel locks, fitted back upholstery, fitted seat upholstery, fitted seat cushions, side guards, anti-tip mechanism, axles, stems, armrests, seat belts, frame protectors, calf straps, fitted back packs, fitted seat pouches, spoke guards, caster pin locks, stroller handles; Exercise equipment for therapeutic sports use and physical rehabilitation in the form of devices for training mobility, strength and balance together with bar supports and standing supports, and parts and accessories therefor