Cuboid masonry brick; has at least one, but preferably three raised part on one support face, preferably top face, with corresponding recess on opposite support face

摘要

The brick (1) has at least one raised part (2-4) on one support face (19) and at least one recess (5-7) on the opposite support face (20), which corresponds to the size of the raised part. Preferably there are three raised parts on the upper support face, which are knob shaped or in the shape of a truncated cone. Preferably the outer raised part is spaced from the edge of the brick corresponds to half the width of the brick. An Independent claim is included for a system to build masonry.