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发明名称
STRUTS FOR JOINING PAIRS OF ARCHES
摘要
申请公布号
GB8404396(D0)
申请公布日期
1984.03.28
申请号
GB19840004396
申请日期
1984.02.20
申请人
CALEDONIAN MINING CO LTD
发明人
分类号
E21D11/28;(IPC1-7):E21D11/28
主分类号
E21D11/28
代理机构
代理人
主权项
地址
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