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C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
C04B33/00—Clay-wares
C04B33/02—Preparing or treating the raw materials individually or as batches
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FR405657D1909-08-021909-08-02Procédé pour la fabrication de pierres ou pavés artificiels pour le pavage des rues, cours et leur équivalent
ExpiredFR405657A
(fr)
Nouvelle substance ou matière pouvant etre employée à la construction de parquets, routes, rues, cours, et en général pour toutes sortes de pavés, etc.