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US2002614A
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Process and apparatus for compressing coal in a chamber oven; retorts and the like
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US1837079A
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Process for obtaining ammonia as ammonium sulphate from gases
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US1940562A
|
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Apparatus for charging a horizontal coke oven with a rammed coal charge
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US1822751A
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Process of extracting benzene hydrocarbons from gases
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US1891700A
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Method of heating coke ovens
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US1772402A
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Operating device for coke-oven doors
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US1835941A
|
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Process of recovering sulphuric acid from the acid-tar of benzol purification
|
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US1830725A
|
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Extraction of phenols from aqueous condensate from coal distillation
|
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US1901770A
|
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Gas-fired furnace
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US1808666A
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Distillation and like column
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US1809659A
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Coke oven and method of operating same
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US1808620A
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Coke oven and the like
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US1819934A
|
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Coke oven
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GB239791A
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Improvements relating to distillation and like columns
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US1429791A
|
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Apparatus for quenching, loading, and screening coke
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GB147736A
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Improvements in direct recovery of ammonia from the products of the destructive distillation of coal or the like
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