| http://www.w3.org/ns/prov#value | - thereof integrally formed with said planar surface portions, means for reinforcing said planar surface including a flexible metallic plate located in juxtaposition with said planar surface throughout the full extent of said surface except for the portions of said planar surface between each of said cube cavities, said plate including tab portions thereon for uniformly flexing said cube cavities t
|
