STEAREO

                                      Within five years of Alexander Graham Bell's invention of the telephone in 1876, Clement Adler, a French engineer, had devised a primitive form of stereophonic transmission on the stage of the Paris Opera, four miles away. but more than 50 years passed before the technique became practical for domestic use. In 1933 British inventor Alan Dower Blulein patented the stereophonics phonograph. However, the first stereophonic records did not go on sale in the United States until 1958, 15 years later.