by 1901, "auergesellschaft" had their first subsidiaries in austria, the united states, and england. in 1906, the osram light bulb was developed; its name was formed from the german words osmium", for the element osmium, and "wolfram, for the element tungsten. in 1920, auergesellschaft, siemens & halske, and allgemeine elektricitäts-gesellschaft (aeg) combined their electric lamp production with the formation of the company osram. in 1935, auergesellschaft developed the luminescent light.