US1907569A
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Process of preparing coal for carbonization
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US1907568A
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Process for coking coal
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GB290575A
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An improved coke and its method of production
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US1874290A
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Coke oven door
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US1827484A
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Apparatus for coking coal
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GB277955A
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An improved tar and a process of obtaining the same
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GB263785A
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Process and apparatus for coking coal
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GB261799A
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Process and apparatus for coking coal
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GB256192A
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Apparatus for coking coal
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GB249886A
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Process and apparatus for coking coal
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US1827483A
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Apparatus for coking coal
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GB270003A
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Process of and apparatus for coking coal
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GB269994A
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Process of coking coal
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US1874344A
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Apparatus for coking coal
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US1909421A
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Process for coking coal
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US1754765A
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Coking coal
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CA276691A
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Process and apparatus for coking coal
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CA301743A
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Fuel
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CA276693A
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Process and apparatus for coking coal
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CA276690A
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Process and apparatus for coking coal
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