Cleaning device invented in 1901 by the Scot Hubert Cecil Booth. Having seen an ineffective dust-blowing machine, he reversed the process so that his machine (originally on wheels, and operated from the street by means of tubes running into the house) operated by suction.
Orange represents courage and sacrifice. White represents truth, purity, and peace. Green represents faith, fertility, and chivalry. The emblem is the Ashoka Chakra (‘Wheel of the Law’). Effective date: 22 July 1947.