Edited sentence: Hosiden Besson Limited was established in 1957, trading as A P Besson and Partner Limited in the UK, manufacturing earpieces for the National Health Service.Hosiden Besson website (English).It was sold to Crystalate Electronics in 1971 to form the Besson division, and as part of a manufacturing group it assimilated injection mouldings and designed and manufactured printed circuit boards.It's capabilities now include: Acoustic, Electronic, Research and Development, fire products, transmission products, Manufacture and Assembly, Injection Molding and Distribution.On 2nd March 1990 Hosiden Corporation, acquired the company