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发明名称
ARRANGEMENT FOR AIRING LENGTHY BLIND WORKINGS
摘要
申请公布号
SU1352077(A2)
申请公布日期
1987.11.15
申请号
SU19864046350
申请日期
1986.04.02
申请人
VOSTOCHNYJ NI GORNORUDNYJ INSTITUT
发明人
FILIPCHIK EVGENIJ A,SU;KROTENKO BORIS N,SU;SHIRYAEV VLADIMIR K,SU;CHERYGOV ANATOLIJ L,SU
分类号
E21F1/08
主分类号
E21F1/08
代理机构
代理人
主权项
地址
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