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经营范围
发明名称
LINING SHIELD
摘要
申请公布号
GB1506023(A)
申请公布日期
1978.04.05
申请号
GB19750033187
申请日期
1976.07.23
申请人
DOSCO OVERSEAS ENG LTD
发明人
分类号
E21D9/06;E21D9/12;(IPC1-7):E21D19/04;E21D9/08
主分类号
E21D9/06
代理机构
代理人
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地址
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