发明名称 |
Ball for play and mathematical games, has system of hollow rails disposed at right angles with captive bodies sliding in them |
摘要 |
<p>In the main body (140) hollow rails (110) disposed at right angles, have bodies (120) sliding in them. They are captive in the guides (130). From the body surface, a projection (150) assists manual grip of the moving bodies.</p> |
申请公布号 |
DE202005003754(U1) |
申请公布日期 |
2005.06.23 |
申请号 |
DE20052003754U |
申请日期 |
2005.03.09 |
申请人 |
SCHMID ERWIN |
发明人 |
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分类号 |
G09B23/02;(IPC1-7):A63F9/08 |
主分类号 |
G09B23/02 |
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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