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发明名称
Improvements relating to the carbonisation of coal
摘要
申请公布号
GB350262(A)
申请公布日期
1931.06.11
申请号
GB19300019384
申请日期
1930.06.25
申请人
N. V. SILICA EN OVENBOUW MIJ
发明人
分类号
C10B31/00;C10B57/04
主分类号
C10B31/00
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