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发明名称
Apparatus for gas and water drainage
摘要
申请公布号
GB9700162(D0)
申请公布日期
1997.02.26
申请号
GB19970000162
申请日期
1997.01.07
申请人
TOWNSEND, DAVID J
发明人
分类号
B32B27/32;E02D31/00;E02D31/02
主分类号
B32B27/32
代理机构
代理人
主权项
地址
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