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发明名称
Process for the refining of chromium ores
摘要
申请公布号
US1828756(A)
申请公布日期
1931.10.27
申请号
US19280266098
申请日期
1928.03.30
申请人
I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT
发明人
WEISE PAUL;SPECHT FRANZ
分类号
C22B34/32
主分类号
C22B34/32
代理机构
代理人
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地址
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