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经营范围
发明名称
Procédé de préparation des bitumes
摘要
申请公布号
FR985387(A)
申请公布日期
1951.07.18
申请号
FRD985387
申请日期
1949.05.02
申请人
N. V. DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ
发明人
分类号
C08K5/17
主分类号
C08K5/17
代理机构
代理人
主权项
地址
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