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CPC Subgroup
E21F 5/20

Drawing-off or depositing dust (; while slitting E21C35/22)

Full Title

Means or methods for preventing, binding, depositing, or removing dust ; Preventing explosions or fires (dams E21F17/103; applying liquids or other fluent materials to surfaces in general B05) > Drawing-off or depositing dust (; while slitting E21C35/22)