发明名称 |
Darts |
摘要 |
A dart is described having a shaft to carry the flight, with a slot opening diametrically through the thickness of the shaft so that the flight can be deformed to a flat condition and pushed laterally through the slot, the extreme end of the shaft behind the flight being closed and pointed or rounded to provide a deflection surface in the event of contact by a further dart.
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申请公布号 |
US4487420(A) |
申请公布日期 |
1984.12.11 |
申请号 |
US19820397823 |
申请日期 |
1982.07.13 |
申请人 |
OLLIS, MARTIN G.;HART, JOHN E. |
发明人 |
OLLIS, MARTIN G.;HART, JOHN E. |
分类号 |
F42B6/00;(IPC1-7):A63B65/02 |
主分类号 |
F42B6/00 |
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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