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发明名称
Well tubing anchor
摘要
申请公布号
US2692648(A)
申请公布日期
1954.10.26
申请号
US19520267392
申请日期
1952.01.21
申请人
SELLS-SIMMONS HYDROSTATIC BAILER CORPORATION
发明人
SIMMONS ARCHIE LEON
分类号
E21B23/01
主分类号
E21B23/01
代理机构
代理人
主权项
地址
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