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经营范围
发明名称
Séparation de carbonate de calcium des minerais par flottation à la mousse
摘要
申请公布号
FR876211(A)
申请公布日期
1942.10.30
申请号
FRD876211
申请日期
1940.09.09
申请人
发明人
HEILMANN THORBJORN
分类号
B03D1/004;B03D1/008;B03D1/02
主分类号
B03D1/004
代理机构
代理人
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地址
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