| 发明名称 |
ICE SKATING RINK |
| 摘要 |
<p>An ice skating rink, comprising a freezing slab and a coating of ice which is created thereon and has patterns embedded in it, in which the patterns comprise a body of mineral and/or polymeric material which is entirely penetrated by open pores and has a porosity of 90 to 99.5%.</p> |
| 申请公布号 |
CA1238063(A) |
申请公布日期 |
1988.06.14 |
| 申请号 |
CA19840463689 |
申请日期 |
1984.09.20 |
| 申请人 |
FIRMA CARL FREUDENBERG |
发明人 |
ANTONOFF, ROMAN;REINHARDT, HEINZ;WEIGANG, BERND;WEGHMANN, ARNOLD |
| 分类号 |
E01C13/10;(IPC1-7):A63C19/10 |
主分类号 |
E01C13/10 |
| 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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