Who invented the first automatic gernade launcher?

The first automatic gernade launcher was made in the Soviet Union around 1935 to 1938.  The Taubin automatic gernade launcher fired 6 40mmfragmentation gernades.  The Taubin gernade launcher never went past prototype stages.

http://world.guns.ru/grenade-e.html


Soviet Taubin gernade laucher.  Fired 6 40mm fragmentation gernades.