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发明名称
ARRANGEMENT FOR SPEEDING UP THE DESCENT RATE OF PROJECTABLE PART OF HYDRAULIC ROOF SUPPORT
摘要
申请公布号
SU625046(A1)
申请公布日期
1978.09.25
申请号
SU19752129385
申请日期
1975.04.28
申请人
KARAGANDINSKIJ NI PK EXI GIDROUGLEMASH
发明人
RUDOMETKIN NIKOLAJ A,SU;GIVERTS MAKSIM L,SU;KRUT VALENTIN S,SU;POLYANSKIJ VALENTIN A,SU;KONOSHENKO ANATOLIJ M,SU;TANSKIKH YURIJ N,SU
分类号
E21D15/44;(IPC1-7):E21D15/44
主分类号
E21D15/44
代理机构
代理人
主权项
地址
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