Sperry Corporation the new automatic pilot. In 1924, following the death of Lawrence on December 13, 1923, the two firms were brought together. The company became Sperry Corporation in 1933. The new corporation was a holding company for a number of smaller entities such as the original Sperry Gyroscope, "Ford Instrument Company", "Intercontinental Aviation, Inc.", and others. The company made advanced aircraft navigation equipment for the market, including the Sperry Gyroscope and the Sperry Radio Direction Finder. Sperry supported the work of a group of Stanford University inventors, led by Russell and Sigurd Varian, who had invented the klystron, and incorporated this
The Mothers of Invention "Bongo Fury" in 1975, which featured live recordings from a tour the same year that had reunited him with Captain Beefheart for a brief period. They later became estranged for a period of years, but were in contact at the end of Zappa's life. "Bongo Fury" was the last new album to be credited to the Mothers. In 1993, Zappa released "Ahead of Their Time", an album of previously recorded material by the original Mothers of Invention lineup. The Mothers of Invention The Mothers of Invention were an American rock band from California. Formed in 1964, their work is marked