Suction operated glass cleaning robots

Wall climbing robots for cleaning, used for cleaning household windows or curtain walls of high buildings; [wall climbing robots for building maintenance and repair, namely, used for laying ceramic tiles, repairing and spraying of high buildings;] washing apparatus, namely, Pressure washing machines, [Vehicle washing machines,] window washing machines; spraying machines; [painting machines; cleaning appliances utilizing steam;] dust exhausting installations for cleaning purposes; dust removin...