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发明名称
Oil well pump controller
摘要
申请公布号
US2316494(A)
申请公布日期
1943.04.13
申请号
US19410393085
申请日期
1941.05.12
申请人
W. C. DILLON & COMPANY, INC.
发明人
TIPTON RAYMOND
分类号
F04B47/02
主分类号
F04B47/02
代理机构
代理人
主权项
地址
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