Number | Name | Date | Kind |
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3140241 | Work et al. | Jul 1964 | |
3506745 | Juel et al. | Apr 1970 |
Entry |
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D. G. Marting et al., "Pipeline Charging Preheated Coal to Coke Ovens", U.N. Economic Commission for Europe Symposium on Developments in European and World Markets for Coking Coal and Coke, Rome, Italy (Mar. 27, 1973). |