F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 13/18 (2006.01) E04B 2/42 (2006.01) E04C 2/34 (2006.01) E04C 2/52 (2006.01) F24F 13/08 (2006.01) F24F 7/00 (2006.01)
Patent
CA 2246097
A venting system for a hollow wall structure having thin spaced walls, particularly such walls formed of plastic, the system comprising a pair of air flow registers which are mounted in aligned holes in the spaced thin walls the registers having flanges to abut the exterior of the spaced thin walls, the registers being secured in position by a fastener bridging across the hollow wall structure to draw the registers together clamping their flanges against the wall exterior.
de Zen Vic
Dennison Associates
LandOfFree
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