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US2997754A
|
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Locking mechanism for awning windows
|
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US3010381A
|
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Circulation control damper
|
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US3019836A
|
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Folding doors and mounting fixtures therefor
|
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US3051071A
|
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Soffit ventilated attics and ventilator members therefor
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US2849763A
|
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Threshold and seal assembly
|
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US2847929A
|
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Damper for registers or the like
|
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US2811096A
|
|
Air distributing register
|
|
US2869450A
|
|
Air register of the wall type
|
|
US2766676A
|
|
Air register of the wall type commonly designated as baseboard registers
|
|
US2847928A
|
|
Side wall register
|
|
US2628551A
|
|
Roof ventilator
|
|
US2636429A
|
|
Roof ventilator adapted for installation on slant roofs
|
|
US2596570A
|
|
Damper operating and securing structure
|
|
US2596257A
|
|
Valve operating mechanism for hot-air registers
|
|
US2652133A
|
|
Grille
|
|
US2509774A
|
|
Valve mechanism for air conditioning registers
|
|
US2596569A
|
|
Window shutter
|
|
US2509773A
|
|
Valve operating mechanism for registers
|
|
US2483704A
|
|
Air conditioning system and register
|
|
US2466353A
|
|
Wall register and the like
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