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发明名称
Plastic soakaway
摘要
申请公布号
GB2204612(A)
申请公布日期
1988.11.16
申请号
GB19870011464
申请日期
1987.05.15
申请人
ROY * BLANSHARD
发明人
ROY * BLANSHARD
分类号
E03F1/00;E03F5/10;(IPC1-7):F16L55/00
主分类号
E03F1/00
代理机构
代理人
主权项
地址
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