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发明名称
Lubricator device
摘要
申请公布号
US2755863(A)
申请公布日期
1956.07.24
申请号
US19520300832
申请日期
1952.07.25
申请人
THE ATLANTIC REFINING COMPANY
发明人
JR. HARRY N. STANSBURY,;WEBBER JACK C.
分类号
E21B33/068
主分类号
E21B33/068
代理机构
代理人
主权项
地址
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