Flugzeugbau A. Comte established Hargen, Zürich, 1923, built mainly German designs under licence. First original design AC.1 fighter, flown April 1927. Subsequent designs all prototypes or very short runs: AC.3 bomber/transport, AC.4 Gentleman 2-seater, AC.8 6-seater, AC.11 photo/mapping aircraft, and AC.12 Moskito 3-seater.