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经营范围
发明名称
Machine d'extraction de charbon
摘要
申请公布号
FR1103956(A)
申请公布日期
1955.11.15
申请号
FRD1103956
申请日期
1954.07.09
申请人
STAMICARBON N. V.
发明人
分类号
E21C35/12
主分类号
E21C35/12
代理机构
代理人
主权项
地址
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