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发明名称
Hydraulic tubing foot
摘要
申请公布号
US2323321(A)
申请公布日期
1943.07.06
申请号
US19400371768
申请日期
1940.12.26
申请人
FUTRAL SAMUEL M
发明人
FUTRAL SAMUEL M.
分类号
E21B17/07
主分类号
E21B17/07
代理机构
代理人
主权项
地址
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