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发明名称
METHOD FOR EXCAVATING AND FILLING BACK OF SEA BOTTOM
摘要
申请公布号
JPS5681738(A)
申请公布日期
1981.07.04
申请号
JP19790158937
申请日期
1979.12.06
申请人
HITACHI SHIPBUILDING ENG CO
发明人
DANNO SATORU
分类号
E02F5/10;E02F5/08
主分类号
E02F5/10
代理机构
代理人
主权项
地址
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