Dover Corporation (Dover) manufactures a range of specialized products and components and also offers related services and consumables. The Company operates in four segments: Communication Technologies, Energy, Engineered Systems, and Printing & Identification. In July 2011, it acquired Sound Solutions from NXP Semiconductors N.V. In September 2011, the Company sold Crenlo, LLC and Paladin Brands of Cedar Rapids. In October 2011, the Company acquired Oil Lift Technology. In November 2011, it acquired Advansor A/S. In November 2011, the Company realigned into four business segments, which includes Communication Technologies, Energy, Engineered Systems and Printing & Identification. In December 2011, the Company sold Heil Trailer International. In March 2012, the Company acquired Maag Group (Maag).