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经营范围
发明名称
Cuvelage de puits intérieur
摘要
申请公布号
FR1082807(A)
申请公布日期
1955.01.03
申请号
FRD1082807
申请日期
1953.05.27
申请人
发明人
BURCKHARDT ROLF
分类号
E21D5/04
主分类号
E21D5/04
代理机构
代理人
主权项
地址
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