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经营范围
发明名称
étançon de mine en acier formé de deux éléments
摘要
申请公布号
FR1009906(A)
申请公布日期
1952.06.05
申请号
FRD1009906
申请日期
1948.07.08
申请人
HERMANN SCHWARZ KOMMANDITGESELLSCHAFT
发明人
分类号
E21D15/32
主分类号
E21D15/32
代理机构
代理人
主权项
地址
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