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经营范围
发明名称
Subsurface pump
摘要
申请公布号
US2808111(A)
申请公布日期
1957.10.01
申请号
US19540459600
申请日期
1954.10.01
申请人
SPERRY-SUN WELL SURVEYING COMPANY
发明人
KRUEGER WILLIAM F.
分类号
F04D13/10
主分类号
F04D13/10
代理机构
代理人
主权项
地址
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