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发明名称
Asphalt manufacture
摘要
申请公布号
US2057265(A)
申请公布日期
1936.10.13
申请号
US19350054457
申请日期
1935.12.14
申请人
SINCLAIR REFINING COMPANY
发明人
RINGGENBERG HERMAN I.
分类号
C10C3/04
主分类号
C10C3/04
代理机构
代理人
主权项
地址
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