Extension electrical switch system and method of manufacture
External operation device for electronic timepieces
Finger operated switching apparatus
Finger operated switching apparatus
Flat key and the frame supporting thereof
Flat key and the frame supporting thereof
Flat keyboard assembly having cover type membrane with protrusio
Flexible diaphragm keypad and method of manufacture
Flexible keyboard
Flexible keyboard switch with integral spacer protrusions
Flexible membrane circuit structure for keyswitch
Flexible pressure sensitive switch actuator module adaptable to
Flexibly designable keyboard and a method of producing the same
Floating button design for a handheld computer
Foil keyboard with security system
Foldable pushbutton-input device
Folding keyboard
Four position two dome switch
Four-directional switching device
Four-way electrical switch