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发明名称
Restricted access barrier
摘要
申请公布号
GB2322149(A)
申请公布日期
1998.08.19
申请号
GB19970002861
申请日期
1997.02.12
申请人
KEITH * BARRACLOUGH
发明人
KEITH * BARRACLOUGH
分类号
E01F13/00;E06B11/00;(IPC1-7):E01F13/00
主分类号
E01F13/00
代理机构
代理人
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地址
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