(10) CA 2730187 A 1
(22) 2011/02/02
(41) 2012/08/02
(71) MATYS, TYLER, CA; RISI, ANGELO, CA
(57) A concrete block and a concrete block set for building a segmental retaining wall. Each block of the block set comprises front and back faces connected tagether by side walls extending between a top surface and a bottom surface.