In addition to his interests in refrigeration, Carl von Linde had also partnered with Hugo Güldner and Georg Krauß and others in 1904 to form the Güldner Motoren-Gesellschaft mbH in Munich, which was moved to Aschaffenburg in 1906. Linde took full ownership of the company in 1929, and from this origin developed a business manufacturing first engines and tractors, and then from the 1950s onwards, a range of mechanical handling equipment such as fork lift trucks. Linde also acquired the Aktiengesellschaft für Industriegasverwertung (english: Corporation for Industry Gas Utilization), commonly referred to as the Heylandt Works.