C21B

Watch

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Description

MANUFACTURE OF IRON OR STEEL (preliminary treatment of ferrous ores or scrap C22B 1/00; electric heating H05B)

Subclasses

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Subclass Title
3/00 General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06)
3/02 General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) by applying additives, e.g. fluxing agents
3/04 General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) Recovery of by-products, e.g. slag
3/06 General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) Recovery of by-products, e.g. slag Treatment of liquid slag (slag wool C03B; slag stones C04B)
3/08 General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) Recovery of by-products, e.g. slag Treatment of liquid slag (slag wool C03B; slag stones C04B) Cooling slag

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Recent Publications

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Patents Issued To Date - By Filing Year

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