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经营范围
发明名称
Gas purification
摘要
申请公布号
US1786509(A)
申请公布日期
1930.12.30
申请号
US19260115408
申请日期
1926.06.11
申请人
THE KOPPERS COMPANY
发明人
SEIL GILBERT E.
分类号
C10K1/12
主分类号
C10K1/12
代理机构
代理人
主权项
地址
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