发明授权
US5116052A Logic puzzle 失效
逻辑难题

Logic puzzle
摘要:
A spatial logical puzzle construction (10) including an upper (13) and lower (14) housing member operatively and rotatably connected together and provided with a plurality of cooperating recesses (16) that form apertures that contain groups of individual puzzle segments (20) that may be rotated within and transferred between the apertures.
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