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发明名称
Extraction process
摘要
申请公布号
US2107681(A)
申请公布日期
1938.02.08
申请号
US19350011647
申请日期
1935.03.18
申请人
SHELL DEVELOPMENT COMPANY
发明人
DIJCK WILLEM J. D. VAN
分类号
B01D11/04;C10G21/00
主分类号
B01D11/04
代理机构
代理人
主权项
地址
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