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经营范围
发明名称
Production of chromium compounds
摘要
申请公布号
US2416551(A)
申请公布日期
1947.02.25
申请号
US19420447963
申请日期
1942.06.22
申请人
UDY MARVIN J
发明人
UDY MARVIN J.
分类号
C01G37/02
主分类号
C01G37/02
代理机构
代理人
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