76389708
Mar 28, 2002
Feb 10, 2004
Level measuring transmitters for measuring the level of liquid or solid materials containers, vessels, elevators, silos, tanks, or lines; level detectors for detecting the level of liquid or solid materials in containers, vessels, elevators, silos, tanks, or lines; level controllers for controlling the level of liquids or solid materials in containers, vessels, elevators, silos, tanks, or lines
Electrical and Scientific Apparatus