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发明名称
METHOD OF ERECTING ICE PILLAR
摘要
申请公布号
SU815320(A2)
申请公布日期
1981.03.23
申请号
SU19782682834
申请日期
1978.11.13
申请人
INST GORNOGO DELA AN KAZAKHSKOJ SSR
发明人
MALCHENKO YURIJ ,SU;FALALEEV LEONID A,SU;MAULENKULOV SAKH M,SU
分类号
E21F15/00;(IPC1-7):E21F15/00
主分类号
E21F15/00
代理机构
代理人
主权项
地址
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