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发明名称
Rod rack
摘要
申请公布号
US1885223(A)
申请公布日期
1932.11.01
申请号
US19300425571
申请日期
1930.02.03
申请人
BOUSLOG JOHN G
发明人
BOUSLOG JOHN G.
分类号
E21B19/14
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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