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GB619230A
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Improvements in or relating to distilling plants for tar, oils and like liquid hydrocarbons
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GB536321A
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Improvements in or relating to distilling plants for tar, oils and like liquid hydrocarbons
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GB337581A
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Improvements in or relating to the distillation of tar or oil
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GB307577A
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Improvements in and relating to processes and plants for the distillation of tar
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GB127700A
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Improvements in or relating to the Continuous Dehydration and Distillation of Tar, or other Liquids and to Apparatus therefor.
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CA297871A
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Plant for washing, drying and chemically treating granular and crystalline materials
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CA382287A
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Tar and oil distillation and cracking
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