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发明名称
Sliding bearer-sets for mine galleries
摘要
申请公布号
US3283514(A)
申请公布日期
1966.11.08
申请号
US19630312025
申请日期
1963.09.27
申请人
APPLICATIONS SCIENTIFIQUES, TECHNIQUES, INDUSTRIELLES ET COMMERCIALES A.S.T.I.C.
发明人
LAUNAY JEAN JOSEPH
分类号
E21D11/18
主分类号
E21D11/18
代理机构
代理人
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地址
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