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Method for preparing direct-dyeing black coloring materials.
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Method for preparing blue coloring materials.
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Method of preparing hides
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Improved Method of using Heavy Hydro-carbons as Fuel in Internal Combustion Engines.
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Method of Obtaining Preparations Capable of Developing Khaki Colours on Animal and Vegeteble Fibres.
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Improved Method for Preserving, Stripping and Cleaning Hides- or Skins.
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Improvements in Colouring Agents and in Processes for their Production.
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Liquid or Solid Solutions or Organic Compounds Producing Emulsions with Water.
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Emulsifiable liquid or solid solution and method of making it.
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Preparation of salts of iron for use in oil-colors.
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Improvements relating to the Manufacture of Paints and Dyes.
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Improvements relating to the Manufacture of Colouring Matters.
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Method of preparing fatty bodies soluble in water
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Fatty substance product
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