CPC Subgroup
E21F 5/18 Impregnating walls, or the like, with liquids for binding dust
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) > Impregnating walls, or the like, with liquids for binding dust