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发明名称
Procédé et appareil pour la fabrication de billes analogues à des noyaux de matière minérale à grains fins
摘要
申请公布号
FR1227907(A)
申请公布日期
1960.08.24
申请号
FR19590798311
申请日期
1959.06.23
申请人
发明人
ROLFSEN OLE
分类号
B01J2/14
主分类号
B01J2/14
代理机构
代理人
主权项
地址
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