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经营范围
发明名称
Perfectionnements aux procédés pour la fabrication des ciments alumineux à hautesrésistances initiales (en un cycle de fabrication) et de ciments alumineux réfractares
摘要
申请公布号
FR898650(A)
申请公布日期
1945.04.27
申请号
FRD898650
申请日期
1943.10.08
申请人
发明人
RAMUZ OSCAR-EMILE;ROCHE EMILE-MARCEL
分类号
C04B7/32
主分类号
C04B7/32
代理机构
代理人
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