Taylor Kenneth Frederick, Gent Anthony: Disc harrow. Knight Farm Machinery, Knight Brian George, Knight Ronald George, Taylor Kenneth Frederick, Gent Anthony, July 19, 2000: GB2345627-A (15 worldwide citation)

A disc harrow having a frame supporting first and second (leading 3 and trailing 4) rows of soil cultivating discs in mutually opposed orientation and with each row divided into mutually opposed halves, characterised by an additional opposed pair of discs 6 disposed at or adjacent to the centre line ...