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DE472085C
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Process for the production of aluminum
|
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DE472006C
|
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Process for the production of aluminum
|
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GB191424025A
|
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Improvements in the application of Hydrochloric Acid in Manufacturing Processes.
|
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GB191424024A
|
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Improved Manufacture of Hydrochloric Acid and Apparatus therefor.
|
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US1163467A
|
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Process for manufacturing iron-oxid castings.
|
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GB191417161A
|
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Improved Process for Manufacturing Castings, consisting of Iron Oxides or Mixtures of Iron Oxides with other Metallic Oxides.
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