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发明名称
Förfaringssätt för behandling av ämnen, som innehålla tantal och niobium
摘要
申请公布号
FI19626(A)
申请公布日期
1943.07.10
申请号
FID19626
申请日期
1938.03.01
申请人
SOCIETE GENERALE METALLURGIQUE D
发明人
LEEMANS JOSEPH PIERRE
分类号
(IPC1-7):C22B51/00
主分类号
(IPC1-7):C22B51/00
代理机构
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