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发明名称
DREDGING METHOD FOR PREVENTING WATER QUALITY FROM CONTAMINATION USING CIRCULATION HIGHHPRESSURE MIXTURE GAS* WATER INJECTION PUMP
摘要
申请公布号
JPS5659931(A)
申请公布日期
1981.05.23
申请号
JP19790134749
申请日期
1979.10.20
申请人
TAKAMURA SHIGEO
发明人
TAKAMURA SHIGEO
分类号
E02F3/88
主分类号
E02F3/88
代理机构
代理人
主权项
地址
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