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发明名称
Improvements in and relating to the treatment of phosphate rock
摘要
申请公布号
GB357814(A)
申请公布日期
1931.10.01
申请号
GB19300031632
申请日期
1930.10.21
申请人
ODDA SMELTEVERK A/S;ERLING JOHNSON
发明人
分类号
C05B11/06
主分类号
C05B11/06
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