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Publication of LU40433A1publicationCriticalpatent/LU40433A1/xx
C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
C04B32/00—Artificial stone not provided for in other groups of this subclass