Demag Cranes AG is a German heavy equipment manufacturer now controlled by US based Terex. The roots of Demag date back prior to its formation, but became Markische Maschinenbau-Anstalt, Ludwig A.-G in 1906 as the biggest crane building company in Germany employing 250-300 people. The company was a manufacturer of industrial cranes that included types like, bridge cranes, hoist (device), overhead cranes, Gantry crane to name a few. In 1910 came the hour of the Deutsche Maschinenfabrik in Duisburg - known worldwide by its telegram abbreviation Demag (now Demag Cranes & Components GmbH). In 1973 The Mannesmann group assumed ownership of Demag. Since that time the company has continued to grow and change. Parts of the company under core business structuring moved from its ownership to focus the main concept of the company.