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| Number | Title | Issue Date |
| 6137894 | On-line method for determining the wood-bark ratio from a flow of material An on-line method for determining the wood-bark ratio in a flow of material containing both wood and bark includes illuminating the flow of material and scanning using a CCD camera, by means of which 30-300 image pixels/cm are obtained in the transverse d... | 10/24/2000 |
