A method and apparatus for operating geography-altering machinery such as a track-type tractor, road grader, paver or the like relative to a work site to alter the geography of the site toward a desired condition. A first digital three-dimensional model of the desired site geography, and a second digital...http://www.google.fr/patents/US5631658?utm_source=gb-gplus-shareBrevet US5631658 - Method and apparatus for operating geography-altering machinery relative to a work site
Method and apparatus for operating geography-altering machinery relative to ...
