73329337
Sep 23, 1981
Feb 7, 1984
Automatic and/or Electric Flow Regulators, Temperature Regulators, Liquid Level Regulators; Measuring Instruments-Namely, Flow Meters, Sensors, Electric Transmission Links, Signal Converters, Signal Modifiers, Counting Units, Indicators-Namely, Measured Value Indicators
Electrical and Scientific ApparatusDraft Regulators and Flow Regulators, Gas Regulators, and Valves for Heating, Steam Generating, Refrigerating and Ventilating Installations
Environmental Control Apparatus