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发明名称
Procédé de fabrication d'un matériau dur, capable de remplacer le carbure de tungstène
摘要
申请公布号
FR873879(A)
申请公布日期
1942.07.22
申请号
FRD873879
申请日期
1941.03.08
申请人
发明人
BREDA LINO;LEFEBVRE GEORGES
分类号
C04B35/71
主分类号
C04B35/71
代理机构
代理人
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地址
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