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发明名称
PROCEDIMIENTO DE PREPARACIËN DE UNA SILICE PRECIPITADA COMO REFORZANTE EN LAS MEZCLAS DEL CAUCHO
摘要
申请公布号
ES235546(A1)
申请公布日期
1957.12.16
申请号
ES19460002355
申请日期
1957.05.18
申请人
CROMOGENIA Y QUIMICA CURTIENTE, S.A.
发明人
分类号
(IPC1-7):C08
主分类号
(IPC1-7):C08
代理机构
代理人
主权项
地址
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