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发明名称
DRAINAGE BLOCKS
摘要
申请公布号
IE36695(B1)
申请公布日期
1977.02.02
申请号
IE19720001242
申请日期
1972.09.12
申请人
EVERCRETE LTD
发明人
分类号
E02B11/00;(IPC1-7):E01C11/22;E03F3/04;E03F5/06
主分类号
E02B11/00
代理机构
代理人
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地址
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