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| Number | Title | Issue Date |
| 6912963 | Apparatus for preparing soil for the placement of seed and additive An apparatus for preparing soil for the placement therein of at least one of seed and fertilizer. A frame is provided with there being first structure on the frame for penetrating the soil to create an opening for at least one of seed and fertilizer as the frame is ... | 07/05/2005 |
| 6644224 | Apparatus for preparing soil for the placement of seed and additive An apparatus for preparing soil for the placement therein of at least one of seed and fertilizer. A frame is provided with there being first structure on the frame for penetrating the soil to create an opening for at least one of seed and fertilizer as th... | 11/11/2003 |
