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经营范围
发明名称
Procédé pour la préparation de cryolithe
摘要
申请公布号
FR709984(A)
申请公布日期
1931.08.17
申请号
FRD709984
申请日期
1931.01.27
申请人
FRIED. KRUPP GRUSONWERK AKTIENGESELLSCHAFT
发明人
分类号
B03D1/06;C01F7/54
主分类号
B03D1/06
代理机构
代理人
主权项
地址
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