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| Number | Title | Issue Date |
| 6871709 | Strip-till primary tillage system An agricultural tillage implement that employs multiple apparatus to carry out a strip-till farming operation is disclosed. A tillage shank runs a point through the compaction layer to fracture and loosen the soil, forcing it upwardly and outwardly where a pair of a... | 03/29/2005 |
| 4687065 | Soil-inversion cultivator A cultivator comprises an array of laterally-spaced soil-inversion discs having their centers arranged in a substantially horizontal line lying at not more than 30° to a transverse plane of the cultivator and being mounted for rotation about individual a... | 08/18/1987 |
| 4541491 | Plow A plow has coupling members at its forward side for connection to a multi-point hitch of a tractor. Furrow slicing members at the front form furrow slices which are elevated to furrow turning drums during operation. The furrow slices are turned about thei... | 09/17/1985 |
| 4409912 | Agronomic implement A cultivating implement include a soil working tool having an elongate substantially planar blade. The blade extends sidewardly and downwardly at an acute angle to the vertical so that its plane is substantially parallel to the direction of movement throu... | 10/18/1983 |
| 4364436 | Ploughs A plow is structured to wholly or partly invert a furrow slice during operation. The furrow slice is cut loose by a leading V-shaped blade and is both compressed, and deflected laterally towards a side wall of the frame by a plurality of rotary lateral di... | 12/21/1982 |
