Müller (German trade company) then opened another 86 outlets by 1990. Since then the company has expanded in Europe. Müller has more than 34,000 employees. In 2010 the company earned revenues of 2.42 billion Euro. Erwin Müller and Elke Menold are General Managers of the company. In 2004, the company was transformed into a Limited & Co. KG (a hybrid of the English cognate of the German GmbH and the German word "Compagnie Kommanditgesellschaft", meaning "limited partnership") when the company registered under English law in London. By October 2017 Müller had a total of 812 outlets in 7 European countries: Müller is primarily a
Lamson Engineering Company Ltd that could carry up to 6 kg. This was designed as an office document carrier. The company relocated to Stoke on Trent in 1974. Lamson Engineering Company Ltd survived until 1976 when it was taken over by Dialed Despatches to become D. D. Lamson. Further acquisitions and sales moved the pneumatic tube business through Crest Nicholson, Frederick Cooper, J. Bibby and Sons and now it is part of Quirepace Lamson Engineering Company Ltd The Lamson Engineering Company Ltd was the best known British manufacturer of Cash Ball, Rapid Wire and Pneumatic tube delivery systems from 1937 to 1976. William Stickney