Complex sentence: They spent the next 60 years developing lithographic processes and printing presses before acquiring typesetting company Intertype Corporation, and Gates Radio, once a producer of broadcast electronics, in 1957.
Split into simpler sentences: They spent the next 60 years developing lithographic processes and printing presses before acquiring typesetting company Intertype Corporation. In 1957, Harris acquired Gates Radio a producer of broadcast electronics, in 1957.