77619912
Nov 21, 2008
Jun 23, 2009
Mechanical switches, namely, inertial switches for detecting vibration of industrial machinery; Mechanical motion sensitive switches, namely, inertial switches for detecting vibration of industrial machinery; Mechanical motor switches for switching off motors, namely, inertial switches for detecting vibration of industrial machinery and initiating shutdown upon excessive vibration; High frequency switches, namely, inertial switches for detecting vibration of industrial machinery
Electrical and Scientific Apparatus