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| 20190388900 | McPhee et al. | Dec 2019 | A1 |
| Number | Date | Country |
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| 2016044936 | Mar 2016 | WO |
| Entry |
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| Sepulveda et al., “A Conceptual Model for SAG Discharge Grate Blockage (Pegging)”, Conminutek Symposium, III Congreso en Chancado y Molienda de Mineral, Apr. 3 and 4, 2014, pp. 1-22. |