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发明名称
METHOD OF AIR TREATMENT BY RECIRCULATION
摘要
申请公布号
SU1740687(A1)
申请公布日期
1992.06.15
申请号
SU19904778324
申请日期
1990.01.08
申请人
INST GORNOGO DELA AN KAZAKHSK
发明人
SLEPYKH VLADIMIR F,SU;BOLGOV YURIJ N,SU;VYAZNIKOVTSEV EVGENIJ V,SU
分类号
E21F1/00
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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