In 1978 Automation Industries and its Vitro subsidiary were acquired by General Cable Corp, which renamed the new company GK Technologies. In 1981 GK Technologies (including Vitro) was acquired by the Penn Central Corporation.
In 1978, Automation Industries and its Vitro subsidiary were acquired by General Cable Corp, which then rebranded the combined entity as GK Technologies. The following year, in 1981, GK Technologies (which included Vitro) was acquired by Penn Central Corporation.