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发明名称
VENTILATION DEVICE
摘要
申请公布号
SU578171(A1)
申请公布日期
1977.10.30
申请号
SU19742090350
申请日期
1974.12.30
申请人
BOCHAROV EVGENIJ V,SU;FILIPPOV GEORGIJ ,SU;BERKOVICH YURIJ ,SU
发明人
BOCHAROV EVGENIJ V,SU;FILIPPOV GEORGIJ ,SU;BERKOVICH YURIJ ,SU
分类号
F24F13/02;(IPC1-7):B23K7/02
主分类号
F24F13/02
代理机构
代理人
主权项
地址
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