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发明名称
DEVICE FOR DEEP-WATER MINING OF IRON-MANGANESE CONCRETIONS
摘要
申请公布号
RU1739704(C)
申请公布日期
1994.04.30
申请号
SU19894701717
申请日期
1989.06.05
申请人
TSENTRALNYJ NAUCHNO-ISSLEDOVATELSKIJ GEOLOGORAZVEDOCHNYJ INSTITUT TSVETNYKH I BLAGORODNYKH METALLOV
发明人
GLUKHOV YU.V.;KISELEV V.M.;LUKYANCHIKOV N.N.
分类号
E21C50/00;(IPC1-7):E21C50/00
主分类号
E21C50/00
代理机构
代理人
主权项
地址
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