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发明名称
Procédé d'enrichissement des matières carbonées
摘要
申请公布号
FR676464(A)
申请公布日期
1930.02.24
申请号
FRD676464
申请日期
1929.06.10
申请人
发明人
VARGA JOSEPH
分类号
C10G1/08;C10G47/00
主分类号
C10G1/08
代理机构
代理人
主权项
地址
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