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CA188033A
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Zinc production
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GB112336A
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Improvements connected with the Treatment of Zinciferous Ores.
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US1262190A
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Treatment of zinkiferous ores.
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US875424A
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Process for the treatment of zinciferous ores and metallurgical products.
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US875425A
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Apparatus for leaching ores and the subsequent separation of the liquids from the solids.
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GB190601004A
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An Improved Process for the Treatment of Zinciferous Ores and Metallurgical Products.
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GB190600994A
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An Improved Apparatus or Plant for the Leaching of Ores or Metallurgical Products and the Subsequent Separation of the Liquids from the Solids.
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CA90553A
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Sulphide separator
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CA90554A
|
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Sulphide separator
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GB190420160A
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Apparatus for Recovering Zinc and other Sulphides from their Ores by the Wet or Chemical Process
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GB190420159A
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Improvements in Apparatus to be used in the Separation and Recovery of Sulphides from their Ores.
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US780281A
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Apparatus for recovering zinc or other sulfids from their ores.
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US778747A
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Apparatus for separating sulfids from their ores.
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CA203169A
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Zinc recovery
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CA342196A
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Automobile headlight
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CA262887A
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Headlight mechanism
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CA271493A
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Vehicle headlight
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