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发明名称
Deep well pump
摘要
申请公布号
US2489505(A)
申请公布日期
1949.11.29
申请号
US19440565470
申请日期
1944.11.28
申请人
SCHMIDT BENJAMIN F
发明人
SCHMIDT BENJAMIN F.
分类号
F03C1/053;F04B1/053;F04B43/067;F04B43/08;F04B43/107;F04B47/06
主分类号
F03C1/053
代理机构
代理人
主权项
地址
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