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发明名称
Apparatus for automatically filling conduit strings
摘要
申请公布号
US2751021(A)
申请公布日期
1956.06.19
申请号
US19530351395
申请日期
1953.04.27
申请人
BAKER OIL TOOLS, INC.
发明人
MUSE JOHN F.
分类号
E21B21/10
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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