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经营范围
发明名称
MEJORAS EN LA PATENTE PRINCIPAL
摘要
申请公布号
ES221550(A2)
申请公布日期
1956.01.01
申请号
ES19550221550
申请日期
申请人
STAMICARBON, N. V.
发明人
分类号
(IPC1-7):B07
主分类号
(IPC1-7):B07
代理机构
代理人
主权项
地址
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