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经营范围
发明名称
OIL DEASPHALTIZING PROCESS
摘要
申请公布号
CA362067(A)
申请公布日期
1936.11.24
申请号
CAD362067
申请日期
申请人
THE STANDARD OIL DEVELOPMENT COMPANY
发明人
REGINALD K. STRATFORD;OLDRICH S. POKORNY
分类号
主分类号
代理机构
代理人
主权项
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