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ES239194A1
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Improvements in ferrous alloys (Machine-translation by Google Translate, not legally binding)
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ES233834A1
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A procedure to manufacture molds or foundation nuclei (Machine-translation by Google Translate, not legally binding)
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US2504133A
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Method of preparing foundry sands
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US2447343A
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Electromagnet positioning device
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GB554903A
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Improvements relating to the supply of blast to cupola and like furnaces
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US2295604A
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Apparatus for controlling the flow of air, gases, and the like
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US2260226A
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Method and means for introducing alloying material
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US2273901A
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Apparatus for preheating the air supply for a furnace
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CA407705A
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Cast-iron manufacture
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CA425339A
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Furnace tuyere air flow apparatus
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