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E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
E04B1/38—Connections for building structures in general
E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
E04B1/49—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses with self-penetrating parts, e.g. claw dowels
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Chemical And Physical Treatments For Wood And The Like
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Procedimento per la produzione, mediante ritaglio e ripiegatura di sottili piastre e di fogli, di figurine plastiche che si reggono senza l'impiego di mezzi ausiliari.