. . . . "Allison aircraft engine" . . . . "Allison Engine Company" . "Allison Turbine" . . "Acquired byRolls-Royce plcin 1995, becomingRolls-Royce North America" . "Allison Engine Company" . "Allison 501-D22C" . "Allison" . "Detroit Diesel Allison" . . . . "Allison Division of the General Motors Corporation" . . . . . . . "Allison Division" . . "Allison engines" . . . . . . . "Allison Machine Shop" . "Allison engine" . . . . . .