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发明名称
SEA BOTTOM MINERAL COLLECTING DEVICE
摘要
申请公布号
JPS53100101(A)
申请公布日期
1978.09.01
申请号
JP19770014633
申请日期
1977.02.15
申请人
MITSUBISHI HEAVY IND LTD
发明人
HAYAKAWA KINICHI
分类号
E21C45/00;E21C45/02;E21C45/04
主分类号
E21C45/00
代理机构
代理人
主权项
地址
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