72029595
May 8, 1957
Apr 28, 1959
AIR CONDITIONING MACHINERY AND APPARATUS-NAMELY, AIR-DEHUMIDIFIERS; AIR WASHERS; AIR COOLING UNITS; COMBINED HEATING, COOLING, AND DEHUMIDIFYING UNITS AND SELF-CONTAINED AIR CONDITIONING UNITS INCLUDING DEHUMIDIFIER COILS, COMPRESSORS, CONDENSERS, AND CONTROLS AND PARTS THEREOF FOR REPLACEMENT AND REPAIR
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