Rolls-Royce North American Technologies
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Rolls-Royce North American Technologies (known also as LibertyWorks) was established in 1995 as Allison Advanced Development Company, Inc. as a result of Rolls-Royce's acquisition of Allison Engine Company. As well as establishing a proxy board for Allison, Rolls-Royce was required to vest Allison's classified projects in Allison Advanced Development Company.
In 2005 Rolls-Royce announced the change of name from Allison to Rolls-Royce North American Technologies. The company will also "be known informally and in industry circles as LibertyWorks." [1]

