71610447
Feb 23, 1951
Jan 27, 1953
INDIVIDUALLY CONTROLLED AIR CONDITIONING UNITS FOR FILTERING AND HEATING AIR IN WINTER, FILTERING, COOLING, AND DEHUMIDIFYING AIR IN SUMMER, AND SUPPLYING FRESH AIR AT ALL TIMES, OF BOTH CEILING AND FLOOR TYPES FOR ROOMS OF BUILDINGS EQUIPPED WITH CENTRAL PLANTS FOR SUPPLYING COOLING MEDIUMS AND HEATING MEDIUMS TO SUCH UNITS IN REMOTE ROOMS
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