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经营范围
发明名称
Apparatus for mining
摘要
申请公布号
GB726477(A)
申请公布日期
1955.03.16
申请号
GB19530015639
申请日期
1953.06.05
申请人
REGIE DES MINES DE LA SARRE
发明人
QUONIAM JEAN MAURICE
分类号
E21C35/20
主分类号
E21C35/20
代理机构
代理人
主权项
地址
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