The Allison Engine Company was a U.S. aircraft engine manufacturer which was acquired by Rolls-Royce plc in 1995 to become a subsidiary, Rolls-Royce Corporation.
The Allison Engine Company was a U.S. aircraft engine manufacturer-Royce plc in 1995 to become a subsidiary-Royce Corporation. This U.S. aircraft engine manufacturer was acquired by Rolls. A subsidiary was Rolls.