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发明名称
PERMANENT-RESISTANCE MINE PROP
摘要
申请公布号
SU715805(A1)
申请公布日期
1980.02.15
申请号
SU19752093718
申请日期
1975.01.06
申请人
DRUZHKOVSKIJ MASHINOSTROITELNYJ ZAVOD IM. 50-LETIYA SOVETSKOJ UKRAINY
发明人
SOBOL VIKTOR M,SU;NOZDRACHEV BORIS F,SU;AKSENOV IVAN M,SU;ALTUKHOV VASILIJ ,SU;ZASTAVENKO VIKTOR ,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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