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发明名称
Drainage systems
摘要
申请公布号
GB9913833(D0)
申请公布日期
1999.08.11
申请号
GB19990013833
申请日期
1999.06.14
申请人
ACO TECHNOLOGIES
发明人
分类号
E01C11/22
主分类号
E01C11/22
代理机构
代理人
主权项
地址
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