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经营范围
发明名称
Procédé de fabrication de matériaux silico-calcaires
摘要
申请公布号
FR727038(A)
申请公布日期
1932.06.11
申请号
FRD727038
申请日期
1931.01.28
申请人
发明人
GIROUD ELIE
分类号
C04B28/18
主分类号
C04B28/18
代理机构
代理人
主权项
地址
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