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发明名称
DEVICE FOR RETAINING SCROLL SECTION
摘要
申请公布号
SU585277(A1)
申请公布日期
1977.12.25
申请号
SU19762392457
申请日期
1976.08.02
申请人
KARAGANDINSKIJ NI PROEKTNO-KONSTRUKTOROSKIJ EXI GIPROUGLEGORMASH
发明人
SARSEMBAEV AKRAM ,SU;PUZYRKOV MIKHAIL K,SU;GRIVERTS MAKSIM L,SU;VASILEV YURIJ V,SU
分类号
E21B3/00;E21B19/24;E21C27/22;(IPC1-7):E21C1/14
主分类号
E21B3/00
代理机构
代理人
主权项
地址
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