A description is given of a device for ventilating roofs in the form of ventilator caps, in the case of which there are provided, in the cap central region, chimney-hole-like slotted openings which are positioned irrespective of the relevant cap width such that their distance from the cap edge always remains essentially the same.
申请公布号
DE3903157(A1)
申请公布日期
1990.08.09
申请号
DE19893903157
申请日期
1989.02.02
申请人
NORM A.M.C. AG, ERSTFELD, URI, CH
发明人
GOEDL, FRITZ, 6374 BUOCHS, DE;RICKERT, HUBERT, 7270 NAGOLD, DE
