| 摘要 |
A graphical display system utilizes an array of base units, which are disengageably affixed to one another so as to form a base board of variable extent, having a grid of slots in the front face thereof. Cover pieces have elements for slidably engaging them upon the front face of the base board, enabling them to be shifted in both of two mutually perpendicular directions within the grid of slots. The cover pieces are of various sizes and dimensions, and appropriate decorative or characterizing elements are applied to their surfaces to permit use for creating effective graphical display components.
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