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经营范围
发明名称
Procédé pour la récupération de résines et de cires de houille, assurant simultanément l'amélioration de la qualité et la désulfuration partielle de la houille
摘要
申请公布号
FR1103105(A)
申请公布日期
1955.10.31
申请号
FRD1103105
申请日期
1954.04.15
申请人
发明人
SIDDIQUI SALIMUZZAMAN
分类号
C10C1/18;C10L9/02;C10L9/08
主分类号
C10C1/18
代理机构
代理人
主权项
地址
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