Heating, cooling, ventilating and make-up air equipment; namely, direct fired heating, ventilating, and replacement air equipment for heating indoor air, ventilating indoor air and replacing exhausted indoor air with outside air; steam coil heating, ventilating, and replacement air equipment for heating indoor air, ventilating indoor air, and replacing exhausted indoor air with outside air; hot water coil heating, ventilating, and replacement air equipment for heating indoor air, ventilating ...

Electronic, alcohol sensing, ignition device installed in automobiles for the purpose of preventing engine start-up by operators whose breath alcohol content exceeds a predetermined amount