74362330
Feb 26, 1993
Sep 20, 1994
telecommunications equipment; namely, telephone exchanges with integrated cooling systems comprising air handling units, control units, coolers, cooling coils, cooling units, expansion tanks, humidifiers, heat exchangers, humidity and temperature sensors, main distribution units, pump units, relay units, supervision units, toggle switches, tube units, water distribution units, water tanks, climate ceilings, and light fittings
Electrical and Scientific Apparatuscooling systems comprising air handling units, control units, coolers, cooling coils, cooling units, expansion tanks, humidifiers, heat exchangers, humidity and temperature sensors, main distribution units, pump units, relay units, supervision units, toggle switches, tube units, water distribution units, water tanks, climate ceilings, and light fittings for telecommunications equipment and personnel
Environmental Control Apparatus