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经营范围
发明名称
METODO PARA LA PREPARACION DE UN COMPUESTO PARA LA PRODUC- CION DE ARIDOS LIGEROS.
摘要
申请公布号
ES445142(A1)
申请公布日期
1977.08.16
申请号
ES19420004451
申请日期
1976.02.13
申请人
POLSKO-WEGIERSKA GORNICZA SPOLKA ACKYJNA "HALDEX"
发明人
分类号
C04B;(IPC1-7):04B/
主分类号
C04B
代理机构
代理人
主权项
地址
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