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DK9746C
(en)
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Procedure for Concentration of Nitric Acid by Electrolysis.
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DK9975C
(en)
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Procedure for the production of pure nitric acid in commercial concentration.
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DK9372C
(en)
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Process for the Extraction of Cyan - Iron Compounds from Gas.
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DK5956C
(en)
|
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Process for the production of nitric acid or nitric acid.
|
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DK1410C
(en)
|
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Procedure for the Production of Oxalic Acid.
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DK8606C
(en)
|
|
Method of Making Compoboard.
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|
DK8868C
(en)
|
|
Method of Treatment of Leather.
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DK8302C
(en)
|
|
Procedure for the production of strips, wires, rods and the like of metal by electrolysis.
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|
DK12527C
(en)
|
|
Procedure for Preparation, Concentration and Simultaneous Purification of Sulfuric Acid.
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|
CH39234A
(en)
|
|
Equipment for the production of U-shaped, iron-reinforced concrete beams
|
|
CH36370A
(en)
|
|
Form for the production of U-shaped, iron-reinforced concrete beams
|
|
DK8880C
(en)
|
|
Method of Manufacturing Methane.
|
|
DK8159C
(en)
|
|
Procedure for the Treatment of Creosote.
|
|
DK8132C
(en)
|
|
Method of Mashing.
|
|
ES35108A1
(en)
|
|
A new procedure for the concentration of sulfuric acid.
|
|
DK10337C
(en)
|
|
Procedure for the production of pure potassium peroxide.
|
|
DK7140C
(en)
|
|
Procedure for the production of nitric acid from air.
|
|
DK12420C
(en)
|
|
Apparatus for the Production of Nitric Acid.
|
|
DK9987C
(en)
|
|
Process for the Extraction of Sulfur from Carbon Sulphide Solutions or the Like.
|
|
DK7893C
(en)
|
|
Procedure for Purification of Tantalum Metal.
|
|
DK9303C
(en)
|
|
Procedure for Extraction of Pure Rubber.
|
|
DK8418C
(en)
|
|
Method of Making Silicon Monoxide.
|
|
DK8166C
(en)
|
|
Procedure for the Production of Oil Gas.
|
|
CH41907A
(en)
|
|
Device for the electrolysis of nitric acid, respectively. liquids containing sulfuric acid
|
|
DK11327C
(en)
|
|
Procedure for the manufacture of steel alloys.
|