characterised by the layers, e.g. by their material or structure

Full Title

Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch > having a plurality of operating members associated with different sets of contacts, e.g. keyboard > with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches > characterised by the layers, e.g. by their material or structure

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC ELEMENTS

Subclass:

ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES