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发明名称
PROCESS FOR HYDROFINING BITUMEN DERIVED FROM TAR SANDS
摘要
申请公布号
CA889826(A)
申请公布日期
1972.01.04
申请号
CAD889826
申请日期
申请人
ESSO RESEARCH AND ENGINEERING COMPANY
发明人
WILLIAM R. GUGGISBERG;JACKSON ENG
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主分类号
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