| 摘要 |
PROBLEM TO BE SOLVED: To provide a block which makes active actions. SOLUTION: The block 10 has protrusions 12a-12f placed on the upper surface, and is interlocked detachably with the other block 10' by fitting protrusions 12 placed on the other block 10' into the underside of the block 10. An electronic device 18 is housed in the base body of the block 10, and a signal line 20 for transmitting signals from the electronic device 18 is provided on the protrusion 12d. COPYRIGHT: (C)2004,JPO&NCIPI
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