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DE581237C
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Device for the evaporation of liquids, drying of materials or for the crystallization of salts from their solutions
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GB369359A
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Improved method of and apparatus for the evaporation of liquids, the drying of materials, or the crystallization of salts from their solutions
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DE553537C
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Device for vaporizing liquids
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US1788352A
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Method of and apparatus for the evaporation of liquids
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US1788351A
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Apparatus for the heat treatment of metalliferous materials
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GB347763A
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Improved process in the manufacture of calcium carbide
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GB343057A
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Improved method of, and apparatus for, the evaporation and crystallisation of liquids and for the drying of materials
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GB337471A
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Improved apparatus for the distillation of volatile metals
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GB330931A
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Improved method of evaporating liquids
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GB330930A
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Improved apparatus for the heat treatment of metalliferous materials
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US1828683A
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Distillation or heat treatment of carbonaceous or like materials
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Condenser
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US1758624A
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Apparatus for removing dust from gases or vapors
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CA311516A
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Process of manufacturing calcium carbide
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CA309976A
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Apparatus for heating metalliferous materials
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CA316322A
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Process for the heat treatment of carbonaceous materials
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CA333660A
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Evaporating apparatus
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