Editing Ericsson (section)

===Market development===
[[File:Ericsson bakelittelefon 1931 sv.jpg|thumb|The Ericsson DBH1001 (1931) was the first combined telephone set with a housing and handset made from Bakelite. The design is attributed to Jean Heiberg.]]
[[File:Ericsson 1950s bakelite telephone.jpg|thumb|The Ericsson DBH15 telephone, a successor of the DBH 1001 and redesigned in 1947 by Gerard Kiljan]]

In the 1920s and 1930s, the world telephone markets were being organized and stabilized by many governments. The fragmented town-by-town systems serviced by small, private companies that had evolved were integrated and offered for lease to a single company. Ericsson obtained some leases, which represented further sales of equipment to the growing networks. Ericsson got almost one-third of its sales under the control of its telephone operating companies.<ref name="history" />