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GB1158904A
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Improvements in or relating to Refining Processes
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GB905775A
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Improvements in and relating to the treatment of the residues of coal tars
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GB899598A
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Improvements in and relating to binding materials for carbon articles
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GB898576A
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Improvements in and relating to the thermal treatment of pitches and similar binders
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GB872159A
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Improvements relating to heat exchange systems in distillation plants
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GB872960A
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Improvements relating to the production of naphthalene
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GB878072A
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Improvements relating to governors for reciprocating pumps
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GB835635A
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Improvements relating to tar distillation plant
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GB848118A
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Improvements relating to heat exchange systems
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ES214456A1
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A device alambique or tubular heater (Machine-translation by Google Translate, not legally binding)
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CA648062A
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Binding materials for carbon articles
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CA504788A
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Process for the distillation and fractionation of oils, tars and like liquid hydrocarbons
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