| 摘要 |
<p>A jigsaw puzzle system, comprising: (a) a plurality of interlocking puzzle pieces, each of which contains an electrical conductor, located either on the bottom surface of said piece, or within the material of each piece, wherein a closed electrical circuit is created when all said puzzle pieces are placed correctly in conjunction with said matching puzzle pieces; (b) means for connecting the end of said electrical conductors on or within one or two of said puzzle pieces to pair of conductors and to a power source; (c) means for indicating a closed operated electrical circuit connected to the power source and to one of the ends of the electrical conductors on or within said puzzle pieces; (d) a power source, electrically connected to one of the ends of the electrical conductors of the puzzle and to the means for indicating the closed operated electrical circuit.</p> |
