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DK9081C
(en)
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Procedure for Treatment of Sulfur Zinc and Sulfur Lead Ore.
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CH38604A
(en)
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Wristwatch
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DK8868C
(en)
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Method of Treatment of Leather.
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CA105339A
(en)
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Treatment of zinc and lead sulphide ores
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DK10968C
(en)
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Method for Treating Indigestible Zinc Lead Ores.
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DK8159C
(en)
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Procedure for the Treatment of Creosote.
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DK8638C
(en)
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Method for the extraction of lead and silver from their sulfur-containing ores.
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DK9079C
(en)
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Procedure and Device for Leaching and Drying of Artificial Threads.
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FR383142A
(en)
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Sulfur therapy
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CH37367A
(en)
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|
Watch improvement
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DK10464C
(en)
|
|
Process for the Production of Zinc Sulfide.
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CA103233A
(en)
|
|
Method of treating sulphide ores
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|
DK16394C
(en)
|
|
Procedure and Oven for the Production of Sublimated Lead White.
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CA110030A
(en)
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|
Treatment of sulphide ores
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CH37146A
(en)
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|
Conical hearth for processing ores
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DK9987C
(en)
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|
Process for the Extraction of Sulfur from Carbon Sulphide Solutions or the Like.
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FR365480A
(en)
|
|
Furnace cover
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CH36289A
(en)
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|
Shoe closure
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CH38223A
(en)
|
|
Shoe closure
|
|
FR368373A
(en)
|
|
Watch improvement
|
|
FR5224E
(en)
|
|
Sulfur
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CH37430A
(en)
|
|
Device for the automatic regulation of drain sluices
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CH37170A
(en)
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|
Closure
|
|
ES41197A1
(en)
|
|
Improvements in the treatment of refractory lead zinc minerals.
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|
DK7637C
(en)
|
|
Procedure for the manufacture of briquettes.
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