The Compagnie générale de la télégraphie sans fil (CSF: General Wireless Telegraphy Company) was a French company founded in 1918 during a reorganization and expansion of the Société française radio-électrique (SFR), which became a subsidiary.The company developed technology for radio-telegraphy, radio program transmission, radar, television and other applications.It provided broadcasting and telegraphy services, and sold its equipment throughout the French colonial empire and in many other parts of the world.In 1968 CSF merged with the Thomson-Brandt to form Thomson-CSF.
