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发明名称
Cement basket
摘要
申请公布号
US3114422(A)
申请公布日期
1963.12.17
申请号
US19610081622
申请日期
1961.01.09
申请人
B & W INCORPORATED
发明人
SOLUM JAMES R.;HEMPEL WILLIAM C.
分类号
E21B33/136
主分类号
E21B33/136
代理机构
代理人
主权项
地址
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