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发明名称
Apparatus for cold treating mineral oil
摘要
申请公布号
US3318383(A)
申请公布日期
1967.05.09
申请号
US19640406695
申请日期
1964.10.27
申请人
PAR-A-GONE, INC.
发明人
SISSON PURDY LEE
分类号
E21B43/34
主分类号
E21B43/34
代理机构
代理人
主权项
地址
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