| 摘要 |
A structural assembly for toy construction sets comprising a unitary frame of open geometric shape and a cover member for sheathing the opening. At least the frame and possibly the cover member is provided with interengaging elements. The elements on the frame comprise at least, two rows of alternating tabs and recesses, one row being offset from the other by one element so that a tab and recess are aligned. When the rows are located on the cover member the elements are arranged on the face of the cover.
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