1921: The German Scheibert brothers started producing flashlight bulbs. The company Scheibert Brothers is established. Professor Juho Jännes and Judge Arvi Jännes became involved. The Finnish Electric lamp factory is established at the Uudenmaankatu in Helsinki, which at first was fixing electric lamps. 1925: Light bulb production started. Airam launches an indoor electrical 16 candles light set. 1931: Strömberg, Finnish Cable factory (Nokia) and Nordic Elecrucity become shareholders. 1933: Glass factory is established. 1934: The original red Airam-thermos bottles' production is started. 1935: Wolfram wire production started. 1938: Name is changed to Oy Airam Ab. Neon and battery department is established. 1939: Airam’s contribution as an industrial plant providing military equipment, batteries and lamps was very important in the long years of war. Lack of raw material and semi-manufactured goods made re-use of blown bulbs profitable. 1943: Oy Radioputki, which was established by Airam, merges with Airam. 1944: Glass factory is established in Puistola, Helsinki. 1947: Oy Kovametalli Ab is established due to Airam's initiative. 1950: Industrial production of fluorescent lamps is started. Battery production started with the new improved technique. 1952: Airam responsible for designing and producing the light scoreboard for the Summer Olympics in Helsinki, gaining worldwide attention and acclaim for its flawless and successful operation.