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发明名称
Procédé de fabrication d'alliages au moyen de carbure de tungstène avec des métaux du groupe fer et du groupe chrome
摘要
申请公布号
FR685640(A)
申请公布日期
1930.07.12
申请号
FRD685640
申请日期
1929.11.27
申请人
发明人
WALTER RICHARD
分类号
C22C29/02;C22C29/04
主分类号
C22C29/02
代理机构
代理人
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