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经营范围
发明名称
VENTILATION VALVE
摘要
申请公布号
SU667777(A1)
申请公布日期
1979.06.15
申请号
SU19752199182
申请日期
1975.10.06
申请人
G PI LE PROMSTROJPROEKTA
发明人
BELSKIJ MIKHAIL ,SU;MAMKIN PETR P,SU;PULKIN ALEKSEJ ,SU
分类号
F24F13/08;(IPC1-7):F24F13/08
主分类号
F24F13/08
代理机构
代理人
主权项
地址
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