Heat exchangers being parts of machines; Auxiliary power units for supplying electrical power to heat and power generators; Electric machines and apparatus for carpet shampooing; Car washing installations; Pulleys being parts of machines; Drain jetters; Carpet cleaning machines; Floor washing machines; Machines for cleaning surfaces using high pressure water; Dust separators; Vehicle washing installations; Electrically-powered steam cleaning device comprising a hose and nozzle and a vapor-pro...