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经营范围
发明名称
Installation de creusage et d'évacuation des déblais
摘要
申请公布号
FR1396338(A)
申请公布日期
1965.04.23
申请号
FR19630954165
申请日期
1963.11.16
申请人
发明人
MAZHARI ALI-ASHRAF
分类号
E21F13/00
主分类号
E21F13/00
代理机构
代理人
主权项
地址
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