Electrical push button panels; electrical push button switch assemblies; electrical push button switches; electrical push buttons being luminous; microphone buttons; panic buttons; push button telephone dials; push buttons for bells

Apparatus for signalling; coded signalling apparatus; electric signalling apparatus; electrical apparatus for the signalling of personnel; electrical instruments for signalling purposes; electrical signalling apparatus; electrical signalling instruments; instruments for signalling; microprocessor driven control units for automatic signalling systems; signalling apparatus; signalling apparatus and instruments; signalling equipment; signalling instruments; signalling panels, luminous or mechanical; voice signalling apparatus for use with mobile radio systems