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经营范围
发明名称
SURFACE WATER SLOT DRAIN THROAT
摘要
申请公布号
GB8617668(D0)
申请公布日期
1986.08.28
申请号
GB19860017668
申请日期
1986.07.18
申请人
AUSTIN, G E
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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