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发明名称
MANGANESE NODULE TRAWL MINING DEVICE
摘要
申请公布号
JPS5285001(A)
申请公布日期
1977.07.15
申请号
JP19760001337
申请日期
1976.01.07
申请人
YOSHIDA KINGO
发明人
YOSHIDA KINGO
分类号
E21C45/00;E21C50/02
主分类号
E21C45/00
代理机构
代理人
主权项
地址
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