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发明名称
DREDGER
摘要
申请公布号
JPS5663582(A)
申请公布日期
1981.05.30
申请号
JP19790137770
申请日期
1979.10.26
申请人
MITSUBISHI HEAVY IND LTD
发明人
YOSHIKAWA SETSU
分类号
E02F3/90;B63B21/50;B63H19/08;E02F3/88
主分类号
E02F3/90
代理机构
代理人
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