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发明名称
Process for the manufacture of asphaltic material
摘要
申请公布号
US2281728(A)
申请公布日期
1942.05.05
申请号
US19390260779
申请日期
1939.03.09
申请人
O. C. FIELD GASOLINE CORPORATION
发明人
THELEN EDMUND
分类号
C10C3/02
主分类号
C10C3/02
代理机构
代理人
主权项
地址
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