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发明名称
Produit réfractaire et son procédé de fabrication
摘要
申请公布号
FR976395(A)
申请公布日期
1951.03.16
申请号
FRD976395
申请日期
1948.12.10
申请人
发明人
HENDREN ROBERT-RALPH
分类号
C04B35/52
主分类号
C04B35/52
代理机构
代理人
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