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IE13042L
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Hardening of metals and alloys
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US1976210A
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Method of hardening iron and steel
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GB294656A
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An improved means for preventing the deposition of scale in steam boilers
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GB294655A
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An improved process for extracting halogens and precious metals from sea-water
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US1592173A
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Process for the reduction of neutral and acid metal-salt solution
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GB211005A
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Process for precipitating or recovering metals from their solutions
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GB194339A
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Process for precipitating or recovering metals from their solutions
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GB184402A
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Process for dissolving out or recovering the metal constituents of metalliferous materials
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DE395511C
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Process for the separation of precious metals from their solutions
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DE352783C
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Process for separating metals from their solutions
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DE329787C
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Electric current collector
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DE325154C
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Process for the production of lead superoxide or manganese superoxide electrodes
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DE353795C
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Process for the extraction of copper from ores, copper-containing waste and alloys
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DE484195C
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Extraction of antimony and tin acid hydrates from metal salt solutions
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