C21C

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Description

PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL (refining or remelting metals in general C22B 9/00); TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS

Subclasses

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Subclass Title
1/00 Refining of pig-iron; Cast iron
1/02 Refining of pig-iron; Cast iron Dephosphorising or desulfurising
1/04 Refining of pig-iron; Cast iron Removing impurities other than carbon, phosphorus, or sulfur
1/06 Refining of pig-iron; Cast iron Constructional features of mixers for pig-iron
1/08 Refining of pig-iron; Cast iron Manufacture of cast-iron

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Recent Publications

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Patents Issued To Date - By Filing Year

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