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发明名称
Procédé d'enrichissement des phosphates noirs des pyrénées avec production simultanée d'un schiste riche en carbone
摘要
申请公布号
FR683811(A)
申请公布日期
1930.06.18
申请号
FRD683811
申请日期
1929.01.30
申请人
L'AZOTE FRANCAIS
发明人
分类号
C05B11/02
主分类号
C05B11/02
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代理人
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地址
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