发明名称 |
A DEVICE FOR HELPING IN OFFSIDE DECISION IN FOOTBALL |
摘要 |
Device for assistance by judging offside, where a house (3) with light sources is provided on the half side of a football field and a corresponding house is provided on the other opposite half side of the football field. The light sources are shielded and define a light beam directed parallel with the short side of the field.
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申请公布号 |
WO9947217(A1) |
申请公布日期 |
1999.09.23 |
申请号 |
WO1999NO00071 |
申请日期 |
1999.03.02 |
申请人 |
HATTLAND, KJELL, ASBJOERN |
发明人 |
HATTLAND, KJELL, ASBJOERN |
分类号 |
A63B71/06;(IPC1-7):A63B71/06 |
主分类号 |
A63B71/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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