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发明名称
VENTILATION UNIT FOR VENTILATING SPACES BENEATH A ROOFING
摘要
申请公布号
PL241331(A2)
申请公布日期
1984.01.30
申请号
PL19830241331
申请日期
1983.03.31
申请人
POLITECHNIKA KRAKOWSKA
发明人
PIWOWARCZYK KAZIMIERZ
分类号
E04D;E04D13/16;E04F17/04;(IPC1-7):E04D/
主分类号
E04D
代理机构
代理人
主权项
地址
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