73746720
Aug 17, 1988
Nov 13, 1990
ELECTRICAL AND ELECTRONIC BURGLAR ALARMS, FIRE ALARMS, AND INSTRUMENTS FOR DETECTING BREAKAGE OF PIPELINES AND BREAKDOWN OF TECHNICAL INSTALLATIONS, NAMELY, PYROMETERS, THERMOSTATS, THERMOSTATICALLY OPERATED REGULATING VALVES, ELECTRONIC TEMPERATURE REGULATORS FOR USE PRIMARILY IN TEMPERATURE CONTROL SYSTEMS IN INDUSTRIAL, MARINE INSTALLATIONS AND THE LIKE; HEAT MEASURING METERS, HOT WATER METERS; REGULATING VALVES FOR USE PRIMARILY IN CENTRAL HEATING, DISTRICT HEATING AND OIL HEATING PLANTS; AND TEMPERATURE, PRESSURE AND PRESSURE DIFFERENTIAL REGULATORS FOR USE PRIMARILY IN CENTRAL HEATING AND OIL HEATING PLANTS; PYROMETERS, THERMOSTATS, THERMOSTATICALLY OPERATED REGULATING VALVES, ELECTRONIC TEMPERATURE REGULATORS FOR USE PRIMARILY IN TEMPERATURE CONTROL SYSTEMS IN INDUSTRIAL AND MARINE INSTALLATIONS
Electrical and Scientific Apparatus