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经营范围
发明名称
Procédé pour l'extraction des cires et résines contenues dans les matières végétales et minéraies telles que lignites, tourbes, schistes, etc.
摘要
申请公布号
FR937219(A)
申请公布日期
1948.08.11
申请号
FRD937219
申请日期
1946.12.26
申请人
发明人
RAMUZ OSCAR EMILE
分类号
C09F1/00;C10G1/04;C10G73/00
主分类号
C09F1/00
代理机构
代理人
主权项
地址
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