Helmut Oni

Electro-hydraulic control and control combine harvesters for height adjustment of maehtisches to

Helmut Oni, Dieter Dipl-Ing Dr Grabenhorst, 1972 .

Sensing device for the automatic chassis effect of a combine

Michael Stampfer, Ernst Rueede, Helmut Oni, 1973 .

Seitenfuehrungsregler for self-propelled machines

Helmut Oni, Eike Guesewell, 1972 .