Environmental control apparatus Trademarks Filed in February 7, 1978
THE DUMONT HEAT SAVER
Filed: February 7, 1978
THERMOSTATICALLY CONTROLLED FAN WHICH FITS INTO THE STOVEPIPE OF AN OIL FURNACE OR WOOD STOVE
Owned by: DUMONT INDUSTRIES
Serial Number: 73157936
BIOPOD
Filed: February 7, 1978
Trickling Filter Packing Elements for the Treatment of Liquid Effluent
Owned by: Bell and Reading Engineering Limited
Serial Number: 73157941
