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经营范围
发明名称
Well pump
摘要
申请公布号
US1958015(A)
申请公布日期
1934.05.08
申请号
US19280302570
申请日期
1928.08.28
申请人
JOHN PENROD
发明人
PENROD JOHN
分类号
F04B47/00
主分类号
F04B47/00
代理机构
代理人
主权项
地址
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