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经营范围
发明名称
Appareil pour l'extraction de l'argile en galerie
摘要
申请公布号
FR994688(A)
申请公布日期
1951.11.21
申请号
FRD994688
申请日期
1949.09.06
申请人
GEWERKSCHAFT OTTO
发明人
分类号
E21C47/10
主分类号
E21C47/10
代理机构
代理人
主权项
地址
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