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摘要
申请公布号
GB2274122(B)
申请公布日期
1996.07.10
申请号
GB19930000215
申请日期
1993.01.07
申请人
* POLYPIPE PLC
发明人
KEITH * MILLWARD
分类号
E04D13/068;(IPC1-7):E04D13/068
主分类号
E04D13/068
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