Building block wall constructions made from building blocks, and methods
(10) US 2018/0274229 Al
(22) 21.05.2017
(43) 27.09.2018
(57) A concrete building block includes indicators along each end to assist in aligning a pin placed in the block with a channel in a like block in a course below as a wall is being constructed.
(71) Anchor Wall Systems, Inc., Minnetonka, MN (US)