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发明名称
Cutting collector
摘要
申请公布号
US2332267(A)
申请公布日期
1943.10.19
申请号
US19420443392
申请日期
1942.05.18
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
SEWELL BENJAMIN W.
分类号
E21B25/02
主分类号
E21B25/02
代理机构
代理人
主权项
地址
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