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经营范围
发明名称
DREDGING PIPE AND UNDERWATER MINING APPARATUS
摘要
申请公布号
JPS54155902(A)
申请公布日期
1979.12.08
申请号
JP19790064098
申请日期
1979.05.25
申请人
DEEPSEA VENTURES INC
发明人
JIYON PII RATEIMAA
分类号
B63B21/66;E02F3/90;E02F7/10;E21C45/00;E21C50/00;F16L1/20
主分类号
B63B21/66
代理机构
代理人
主权项
地址
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