72097673
May 23, 1960
Jan 31, 1961
Domestic and Industrial Heating, Cooling and Ventilating Apparatus and Systems-Namely, Furnaces, Heat Exchangers, Burners, Heat Pumps, and Electrical Strip Heaters; Air Conditioners, Condensers, and Evaporators; Blowers, Cabinets, Ducts, Dampers, Motors, Pumps, Filters, Electrostatic Filters, and Humidifiers; Controls for Heating and Air Conditioning Equipment; and Parts and Components for the Foregoing
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