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经营范围
发明名称
Petroleum refining
摘要
申请公布号
US1853671(A)
申请公布日期
1932.04.12
申请号
US19280299777
申请日期
1928.08.15
申请人
THE GRAY PROCESSES CORPORATION
发明人
DICKINSON EDWIN A.
分类号
C10G50/00
主分类号
C10G50/00
代理机构
代理人
主权项
地址
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