F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 7/007 (2006.01) E04D 13/03 (2006.01) E04D 13/143 (2006.01) E04D 13/17 (2006.01) F24F 7/02 (2006.01)
Patent
CA 2246240
A roof ventilation system, especially for a conservatory roof, comprises a cowl attachable to a ridge component of the roof and an electrically operated rotor within the cowl.
Sim & Mcburney
Ultraframe (uk) Limited
LandOfFree
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