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发明名称
Method and apparatus for producing ball-like nodules of fine-grained ores and minerals
摘要
申请公布号
GB818625(A)
申请公布日期
1959.08.19
申请号
GB19570007724
申请日期
1957.03.08
申请人
OLE ROLFSEN
发明人
分类号
B28C7/00
主分类号
B28C7/00
代理机构
代理人
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