(10) WO 2012/083457 A1
(22) 21.12.2011
(43) 28.06.2012
(71) LES MATERIAUX DE CONSTRUCTION OLDCASTLE CANADA, INC. [CA/CA]; 44 Chipmm1 Hill, lOiemme etage, St-Jolm, New Bnmswick E2L 4S6 (CA).
(57) A stackable concrete wall block is disclosed having a prism shaped body with front, rear top m1d bottom faces, in a stacked condition, and at least a pair of side walls for placement opposite a like block placed side by side to the wall block, whereby a lip protrudcs from at least onc ofthc sidcwalls m1d is coplmwr with thc front facc for spacing thc body of thc block from that of a like block placed...