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经营范围
发明名称
Method of treating sulphonated oils, etc.
摘要
申请公布号
US1876768(A)
申请公布日期
1932.09.13
申请号
US19290397441
申请日期
1929.10.04
申请人
WILLIAM SELTZER
发明人
SELTZER WILLIAM
分类号
C11C3/00
主分类号
C11C3/00
代理机构
代理人
主权项
地址
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