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| Number | Title | Issue Date |
| 5045025 | Co-rotational axial flow combine A combine for cutting and threshing grain has an axial flow threshing drum. A feeder head mounts to the forward end of the threshing drum. Impellers on the feeder head push grain into the threshing drum housing and also provide threshing. Rasp bars on the... | 09/03/1991 |
| 4910946 | Extensible combine header A header for a combine moves between retracted and extended positions. The header has a platform with at least two platform sections. The platforms will extend in longitudinal directions relative to each other. A rotatably driven auger is mounted to the p... | 03/27/1990 |
