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发明名称
Production method and apparatus
摘要
申请公布号
US3282336(A)
申请公布日期
1966.11.01
申请号
US19620225983
申请日期
1962.09.25
申请人
RICHFIELD OIL CORPORATION
发明人
JR. CHARLES E. WAKEFIELD,
分类号
E21B33/035;E21B43/01
主分类号
E21B33/035
代理机构
代理人
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