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Delivery device for blast furnace
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Patent number 11,566,844
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Issue date Jan 31, 2023
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Danieli & C. Officine Meccaniche SpA
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Angelico Della Negra
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F27 - FURNACES KILNS OVENS RETORTS
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3854863
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Patent number 3,854,863
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Issue date Dec 17, 1974
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F27 - FURNACES KILNS OVENS RETORTS
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2037554
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Patent number 2,037,554
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Issue date Apr 14, 1936
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F27 - FURNACES KILNS OVENS RETORTS
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1348510
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Patent number 1,348,510
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Issue date Aug 3, 1920
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F27 - FURNACES KILNS OVENS RETORTS