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发明名称
MINERAL OIL REFINING PROCESS
摘要
申请公布号
CA378434(A)
申请公布日期
1938.12.20
申请号
CAD378434
申请日期
申请人
SHELL DEVELOPMENT COMPANY
发明人
ALVIN P. ANDERSON
分类号
主分类号
代理机构
代理人
主权项
地址
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