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发明名称
Extraction process
摘要
申请公布号
US2023109(A)
申请公布日期
1935.12.03
申请号
US19300455959
申请日期
1930.05.26
申请人
SHELL DEVELOPMENT COMPANY
发明人
DIJCK WILLEM JOHANNES DOMINICUS VAN
分类号
B01D11/04;C07C9/14;C07C29/74;C10G21/04;C10G31/11
主分类号
B01D11/04
代理机构
代理人
主权项
地址
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