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经营范围
发明名称
Reduction of residuum from cracking operation by distillation
摘要
申请公布号
US1965189(A)
申请公布日期
1934.07.03
申请号
US19280289342
申请日期
1928.06.30
申请人
UNIVERSAL OIL PRODUCTS COMPANY
发明人
HUFF LYMAN C.
分类号
主分类号
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代理人
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