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发明名称
Oil extraction
摘要
申请公布号
US2325327(A)
申请公布日期
1943.07.27
申请号
US19400341175
申请日期
1940.06.18
申请人
THE SCHWARZ ENGINEERING COMPANY, INC.
发明人
LACHLE FRANK B.
分类号
C11B1/02
主分类号
C11B1/02
代理机构
代理人
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地址
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