Electric floor cleaners (vacuuming machines) for industrial use; electric industrial vacuum cleaners; electric vacuum apparatus for floor cleaning; electric vacuum cleaners; electric vacuum cleaners for commercial use; electric vacuum cleaners for industrial use; floor cleaning (vacuuming) machines; industrial carpet vacuuming machines; industrial cleaning machines (vacuum cleaners); industrial floor cleaning machines (vacuum cleaners); industrial vacuum machines for cleaning; machines for carpet cleaning (vacuuming); machines for cleaning (vacuuming) carpets; suction cleaning machines (vacuum cleaners); vacuum cleaners; vacuum cleaners for industrial purposes; wet and dry vacuum cleaners