central vacuum cleaners, central vacuum cleaning systems, comprising hoses, cleaning nozzles, hose supports, brushes, carpet beaters, rotary brushes, and liquid recuperation containers; hoses for central vacuum cleaning systems; cleaning nozzles for central vacuum cleaning systems; hose supports for central vacuum cleaning systems; brushes for central vacuum cleaning systems; carpet beaters for central vacuum cleaning systems; rotary brushes for central vacuum cleaning systems; liquid recuperation containers for central cleaning systems

services of installation and maintenance of central vacuum cleaners; services of installation and maintenance of central vacuum cleaning systems comprising hoses, cleaning nozzles, hose supports, brushes, carpet beaters, rotary brushes, and liquid recuperation containers; services of repair of central vacuum cleaners; services of repair of central vacuum cleaning systems comprising hoses, cleaning nozzles, hose supports, brushes, carpet beaters, rotary brushes, and liquid recuperation containers