| 发明名称 |
MODIFIED ARTIFICIAL SURFACE AND METHOD AND APPARATUS OF MAKING SAME |
| 摘要 |
An artificical surface having at least one compartment with a filler therein has the filler held in position by a vacuum.
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| 申请公布号 |
CA2177235(A1) |
申请公布日期 |
1996.12.08 |
| 申请号 |
CA19962177235 |
申请日期 |
1996.05.23 |
| 申请人 |
WEBER, EDWARD A. |
发明人 |
WEBER, EDWARD A. |
| 分类号 |
E01C13/02;E01C13/08;(IPC1-7):A63C19/04 |
主分类号 |
E01C13/02 |
| 代理机构 |
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