An irrigation assembly has a main pipeline supported at intervals by mobile towers, a plurality of drop tube assemblies at spaced intervals along the pipeline and a collector positioned to receive water from the drop tube assembly. A plurality of targets are positioned on the ground in the paths of motion...http://www.google.fr/patents/US7686234?utm_source=gb-gplus-shareBrevet US7686234 - Mobile irrigation machine with underground water application
Mobile irrigation machine with underground water application
