CA180786A
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Carbide production
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CA180785A
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Apparatus for making carbide
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CA180784A
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Carbide manufacture
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US1226811A
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Process of securing potassium cyanid from water-insoluble potassium-containing mineral.
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US1226812A
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Process of securing water-soluble potassium compounds from water-insoluble potassium-containing mineral.
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US1241020A
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Process of making calcium or other metal cyanamid.
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CA163466A
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Electrode for furnaces
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CA145783A
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Airship mechanism
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CA147036A
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Airship mechanism
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CA149522A
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Electric crucible
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CA160495A
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Metal separation
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CA145523A
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Apparatus for treating materials with gas
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CA157404A
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Electric refining crucible
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CA154577A
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Regulation of electrodes in electric furnaces
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CA141812A
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Current reversing relay
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GB191101609A
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Improvements in Electric Furnaces.
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GB191019805A
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Means for Regulating Electrodes in Electric Furnaces.
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GB191019804A
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Electric Furnaces.
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CA131829A
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Electric smelting apparatus
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GB191009459A
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Electric Induction Furnaces.
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