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经营范围
发明名称
Process for separating coal and rock by means of an unstable suspension
摘要
申请公布号
GB633684(A)
申请公布日期
1949.12.19
申请号
GB19390022695
申请日期
1939.08.04
申请人
DE DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG
发明人
分类号
B03B5/40;B03B11/00
主分类号
B03B5/40
代理机构
代理人
主权项
地址
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