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发明名称
Dispositif pour faciliter l'extraction, hors des centrifugeuses, des sels centrifugés
摘要
申请公布号
FR702698(A)
申请公布日期
1931.04.14
申请号
FRD702698
申请日期
1930.09.27
申请人
N. V. SILICA EN OVENBOUW MIJ
发明人
分类号
B04B3/00;C01C1/249
主分类号
B04B3/00
代理机构
代理人
主权项
地址
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