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经营范围
发明名称
Purification of oil
摘要
申请公布号
US1894958(A)
申请公布日期
1933.01.24
申请号
US19290361489
申请日期
1929.05.08
申请人
OIL RECLAMATION COMPANY
发明人
MAIN JOHN S.
分类号
C10G31/08
主分类号
C10G31/08
代理机构
代理人
主权项
地址
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