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发明名称
Ancre récupérable pour relier et consolider des couches rocheuses dans les mines
摘要
申请公布号
FR1156187(A)
申请公布日期
1958.05.13
申请号
FRD1156187
申请日期
1956.08.29
申请人
发明人
WEGHUBER WILHELM
分类号
E21D21/00
主分类号
E21D21/00
代理机构
代理人
主权项
地址
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