75521357
Jul 20, 1998
May 6, 2003
Apparatus, system, and instruments for weighing, measuring, signaling, automation, control and checking, namely, portable computer programmed balancing instrument with electronic differential pressure gauge and micro computer program for measuring, signaling, control and checking of flow and differential pressure, computer hardware, computer operating system software, integrated circuits, and prerecorded software for measuring differential pressures, flow rates and temperatures of fluids within conduits, and parts therefore, all the aforementioned goods for use in heating, cooling, ventilation, water supply, temperature and moisture adjustment, lighting, power supply, air conditioning and security devices in buildings; electrical transformers; rheostats; humidistats; and fire fighting apparatuses, namely, fire hose nozzles, extinguishers, and alarms, and parts therefor
Electrical and Scientific Apparatus