74228476
Dec 4, 1991
Apr 20, 1993
[ accessories for oil and gas burners; namely, diaphragms, ignition electrodes and electrode holders ]
Electrical and Scientific Apparatusair-moving devices; namely, impellers for blowers, ventilators and fans, fan inlets and accessories for oil and gas burners; namely, intake nozzles and nozzle holders
Environmental Control Apparatus