F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 7/007 (2006.01) F24F 13/068 (2006.01)
Patent
CA 2578329
A recirculating fan, for installation in an upper region of a building space, and having, a housing, a fan, an air vent ring defining an intake path and a discharge path, an air grille for the intake and discharge paths, the air grille being releasably attached to the housing and being moveable relative to the housing, and releasable fastening devices for releasably fastening the air grille to the housing
Rolston George A.
Wilkins David
LandOfFree
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