发明名称 Dart and dartboard set
摘要 A dart and dartboard set, which includes a dart, which is a plastic dart with a flat magnet at the front end, and a dartboard, includes a front fabric panel printed with a score, ring pattern, a back fabric panel, two induction circuit membranes separated by a flexible magnet panel and packed between the front fabric panel and the back fabric panel, and a control circuit board for counting and displaying the score.
申请公布号 US7163204(B1) 申请公布日期 2007.01.16
申请号 US20050253953 申请日期 2005.10.18
申请人 GUTEN ELECTRONICS INDUSTRIAL CO., LTD. 发明人 LIAO BEEN-TZAW
分类号 F41J3/00;F41J5/00 主分类号 F41J3/00
代理机构 代理人
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