发明名称 RELATING TO TARGET APPARATUS
摘要 A target for projectiles, such as darts, has a base and a multi-section board mounted on the base and rotatable to any of a number of set positions. One or more sensors, concealed behind the board, determine the orientation of the board and produce a signal which is fed into the computerized scoring system, keeping that consistent whatever the orientation of the board.
申请公布号 CA2080348(A1) 申请公布日期 1991.10.12
申请号 CA19912080348 申请日期 1991.04.08
申请人 WELLOW LEISURE PRODUCTS LIMITED 发明人 MACPHEE, RONALD A.;POWELL, ROBERT C.
分类号 F41J3/00;F41J7/00;(IPC1-7):F41J3/00 主分类号 F41J3/00
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