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发明名称
Method for manufacturing residual oils of high asphaltic content
摘要
申请公布号
US2069620(A)
申请公布日期
1937.02.02
申请号
US19320617529
申请日期
1932.06.16
申请人
SOCONY-VACUUM OIL COMPANY, INCORPORATED
发明人
NEVITT HENRY G.
分类号
C10C3/00
主分类号
C10C3/00
代理机构
代理人
主权项
地址
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