B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
B28B7/00—Moulds; Cores; Mandrels
B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
B28B7/183—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article for building blocks or similar block-shaped objects
Procede de moulage par injection de bacs en matiere plastique pour batteries et accumulateurs electriques et moule pour la mise en oeuvre de ce procede
Plaque de plâtre ou matière analogue pour la construction de cloisons minces, procédé de fabrication de cette plaque et moule pour la mise en oeuvre de ce procédé