发明名称 Magnetic blocks
摘要 A magnetic block including an upper face and a lower face and side faces therebetween and a plurality of magnets located within the blocks.
申请公布号 US6024626(A) 申请公布日期 2000.02.15
申请号 US19980187969 申请日期 1998.11.06
申请人 MENDELSOHN, HILLARY SINGER 发明人 MENDELSOHN, HILLARY SINGER
分类号 A63H33/04;(IPC1-7):A63H33/04 主分类号 A63H33/04
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