| 发明名称 |
BLOCK HAVING RECESSES IN THE FIRST AND THIRD SIDE SURFACES AND PROJECTIONS ON THE SECOND AND FOURTH SIDE SURFACES |
| 摘要 |
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| 申请公布号 |
NZ331007(A) |
申请公布日期 |
1999.06.29 |
| 申请号 |
NZ19970331007 |
申请日期 |
1997.11.14 |
| 申请人 |
PETRATECH INC (SUBSTITUTED UNDER SECTION 24(1) FROM KEYSTONE RETAINING WALL SYSTEMS, INC |
发明人 |
KNIGHT, DAVID W |
| 分类号 |
E02B3/14;(IPC1-7):E02B3/14;E02D17/20;E04C1/00 |
主分类号 |
E02B3/14 |
| 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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