having three legs

Full Title

Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch (wherein the operating part is flexible H01H17/00) > Details > Snap-action arrangements depending upon deformation of elastic members > using flexing of blade springs > Blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg > having three legs