Boots und Flugzeugbau Gebr Muller
Germany
Brothers Jacob and Philipp Muller formed Boots und Flugzeugbau Gebr Muller at Darmstadt in 1908, manufacturing parts for Voisin aircraft being built under license by August Euler. After First World War developed several light aircraft, including GMG V two-seat cabin monoplane with Argus As.16 or BMW Xa engine.
Aircraft
Müller Prairie Eagle

Jacques V. Müller emigrated to the USA and settled in Salina, Kansas, where he experimented with balloons and from 1909 reportedly built four airplanes. The Blériot-inspired “Prairie Eagle” was the first monoplane in Kansas.
Müller, Jacques V.
Jacques V. Müller was born in Luxembourg in 1881 and emigrated to the USA in 1900 to join his sister, who ran a farm there. He settled in Salina, Kansas, where he experimented with balloons and from 1909 reportedly built four airplanes. In 1914 he returned to Luxembourg, where he started a mine and a pigment factory.
Mukai Olive 2

The Mukai Olive 2 by Isao Mukai from Japan.
Mueyetemi Sportrepulo Egyesulet M.24 Nebulo

The M.24 Nebulo tandem two-seat cabin monoplane was built by the Muegyetimi Sportrepulo Egyesult (Sport Flying Association of the Technical University) of Budapest, Hungary, and first flown in 1938.
The M.24 was of mixed construction with a wooden wing and steel-tube fuselage with plywood and fabric covering, and power was provided by a 100 hp Hirth HM.504 engine.
Mueyetemi Sportrepulo Egyesulet M.21
A single-seat aerobatic biplane.
Mueyetemi Sportrepulo Egyesulet M.19
A tandem two-seat cabin monoplane powered by Gipsy Major
Mueyetemi Sportrepulo Egyesulet Gerle 13
Powered with an Armstrong Siddeley Genet Major engine.
Mueyetemi Sportrepulo Egyesulet
Hungary
Sport Flying Association of Technical University, Budapest. Designed and built light aircraft throughout 1920s and 1930s, including Gerle 13 with Armstrong Siddeley Genet Major engine, M.19 tandem two-seat cabin monoplane powered by Gipsy Major and M.21 single-seat aerobatic biplane.
Mudry CAP 222
A version of the US AkroTech Giles G-202 two-seat kit-built aerobatic competition aircraft and trainer.