Building blocks

摘要

A block 10 stackable atop one or more like blocks to form a structure wherein the block is hollow and includes an inlet 34 for receiving a filling material, the inlet being closable to sealingly contain the filling material to support the block. 10 34 22B 14A 18B 20 14C 24C (a) (b) (c) (d) 240 212 14D (f2 /,26 () () ()FIGURE 122 1 (a) (b) (c) (d) (e) (f) (a) (b) (c) (d) (e) Mf (a) (b) (c) (d) FIGURE 4 (f) 16D0 18B 1C20C 16A 22B 18C