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发明名称
CIRCULATING CURRENT TYPE WELL PUMP DEVICE
摘要
申请公布号
JPH02204511(A)
申请公布日期
1990.08.14
申请号
JP19890022584
申请日期
1989.02.02
申请人
YAMADAI KIDEN KK
发明人
SUGAWARA HIROMITSU
分类号
E01H5/10;F04B47/06;F24J3/08
主分类号
E01H5/10
代理机构
代理人
主权项
地址
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