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发明名称
AIR STREAM SWITCHING DEVICE
摘要
申请公布号
SU1469174(A2)
申请公布日期
1989.03.30
申请号
SU19874262688
申请日期
1987.06.16
申请人
KUZBASSKIJ POLT INSTITUT
发明人
FREJDLIKH ILYA S,SU;GIMELSHEJN LEONID YA,SU;FREJDLIKH BORIS I,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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