Encoder having first and second housing portions and guide means
Engine oil draining assembly
Mercury electrode switch
Mercury switch
Mercury switch
Mercury tilt switch
Mercury tilt switch and method of manufacture
Mercury type tilt switch
Micro-miniature mercury tilt-type inertia switch
Momentary rotating mercury switch
Multi-pole conductive liquid-based switch device
Pistol grip controller
Power management sensing rotating platter with liquid...
Shock sensor switch having a liquid conductor
Snap action tilt actuated mercury switch
Tilt switch