The story
Founding
Wilhelm Franz, born in Bremen in 1913, founded Elektromesstechnik Wilhelm Franz K.G. in Berlin in 1938. Two years later Wilhelm's brother, Walter, joined the company. The Allied bombing air raids over Berlin intensified in 1943 and Franz moved to Schuttertal, then, after 1945, to Lahr, in the Schwarzwald (Black Forest) region of south-western Germany. The logo of an arrowhead was chosen as a symbol of the passage of an electric signal in an electronic circuit.
1989 purchase
EMT was bought by the Belgian firm Barco and became "Barco-EMT" on 1 January 1989. The production of professional audio equipment was gradually discontinued.
From Wikipedia’s article on Elektromesstechnik, shared under CC BY-SA 4.0.4