U.S. federal trademark · Serial No. 73719927 · Reg. No. 1558909
VENTILATION SYSTEMS FOR EXHAUSTING GASES FROM GAS- AND OIL-FIRED APPLIANCES FOR RESIDENTIAL USE, INCLUDING SYSTEM COMPONENTS COMPRISING PIPES, COLLARS, ROOF FLASHING, DRAIN PLUGS, ELBOWS, TEES, SUPPORTS, COUPLINGS, WALL THIMBLES AND TERMINATION CAPS
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