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发明名称
Procédé de raffinage des graphites cristallins
摘要
申请公布号
FR712323(A)
申请公布日期
1931.09.30
申请号
FRD712323
申请日期
1930.06.11
申请人
发明人
CORDEBAS RENE
分类号
C01B31/04
主分类号
C01B31/04
代理机构
代理人
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