Patent classifications
C
CHEMISTRY; METALLURGY
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C21
METALLURGY OF IRON
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C21B
MANUFACTURE OF IRON OR STEEL
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3/00
General features in the manufacture of pig-iron
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C21B3/04
Recovery of by-products, e.g. slag
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C21B3/06
Treatment of liquid slag
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C21B3/10
Slag pots; Slag cars
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