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GB483549A
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Improvements in the process of manufacturing smokeless fuel briquettes
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US2012447A
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Vertical coking retort bench
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US1918029A
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Traveling loading device
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US1964050A
|
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Rotary breaker
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US1994129A
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Closure means for vertical coking retorts
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US1933729A
|
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Closure means for coking retorts
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US1928105A
|
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Waterproof material and the manufacture thereof
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US1898839A
|
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Process of manufacturing porous silica ware
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US1899811A
|
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Fuel and the manufacture thereof
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US1967311A
|
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Ceramic product and the manufacture thereof
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US1885839A
|
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Binder material for coal, coke, and the like, and the manufacture thereof
|
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US1899809A
|
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Process of coking solid carbonizable material
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US1899810A
|
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Porous siliceous carbon and the manufacture thereof
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US1858274A
|
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Process for reducing oxide ores
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US1899808A
|
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Process of coking carbonizable material
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US1623876A
|
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Process of making cement
|
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US1855190A
|
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Process of making phosphate silicate fertilizer
|
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US1664689A
|
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Process of manufacturing chamotte materials
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US1666936A
|
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Process of manufacturing ceramic products
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US1852709A
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Hydrogenation of carbonaceous materials
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