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发明名称
VORTEX FLOW PREVENTION DEVICE FOR WATER TANK OF PUMP SUCTION
摘要
申请公布号
JPS5647688(A)
申请公布日期
1981.04.30
申请号
JP19790122039
申请日期
1979.09.25
申请人
HITACHI LTD
发明人
SUDOU SUMIO
分类号
F04D29/66
主分类号
F04D29/66
代理机构
代理人
主权项
地址
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