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发明名称
Lubricating system for pumping power
摘要
申请公布号
US1906004(A)
申请公布日期
1933.04.25
申请号
US19310527439
申请日期
1931.04.03
申请人
OIL WELL SUPPLY COMPANY
发明人
GREVE EDGAR E.
分类号
F16N7/40
主分类号
F16N7/40
代理机构
代理人
主权项
地址
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