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发明名称
Dumping apparatus
摘要
申请公布号
US2013863(A)
申请公布日期
1935.09.10
申请号
US19330659595
申请日期
1933.03.06
申请人
SLOCUM JOSEPH H
发明人
SLOCUM JOSEPH H.
分类号
E21B27/02
主分类号
E21B27/02
代理机构
代理人
主权项
地址
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