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ES320552A1
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A procedure for the extraction of so2 content in gas currents. (Machine-translation by Google Translate, not legally binding)
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GB190727738A
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Means for Increasing the Efficiency of the Reaction Spaces in the Lead Chamber Process of Making Sulphuric Acid.
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GB190721346A
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Packing Material for Gas Purifiers or Washers, Condensers, Reaction Chambers, Hot-blast Stoves or the like
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US899899A
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Filling material for reaction-chambers.
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GB190715941A
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Furnace for Roasting Sulphide Ores.
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GB190715406A
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Improvements in or relating to Packing Material for Reaction Chambers, Towers or the like
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US899898A
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Filling for reaction-chambers, &c.
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GB190711559A
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Process for the Prevention of the Denitrating Action in the Gay-Lussac-absorption-apparatus.
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US904147A
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Manufacture of sulfuric acid.
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US657955A
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Process of enriching metallic sulfids.
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CA283515A
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Sulphuric acid
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CA278297A
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Sulphuric acid
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CA278298A
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Manufacture of sulphuric acid
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CA278299A
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Manufacture of sulphuric acid
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CA280308A
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Sulphuric acid manufacture
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CA278300A
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Sulphuric acid
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US908696A
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Method of making sulfuric acid.
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CA279079A
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Sulphuric acid
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CA288024A
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Sulphuric acid
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CA284707A
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Gas and liquid contact means
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