Speed warning device

Speed-control system for an engine-powered vehicle

Speed-deceleration warning system for motor vehicles

Speedometer display of simulated analog needle and odometer on e

Stability indicator for marine vessel

Status display system

Status monitoring apparatus for BLC systems

Steerable wheel direction indicator

Steering angle indicating system for a vehicle

Steering device with dished impact plate for automotive vehicles

Steering mechanism inactivity warning device

Steering wheel system

Stepping switch controlled traffic signal devices

Stop indicator arrangement for an automotive vehicle

Stop lamp monitor circuit

Stop sign watcher, a device for monitoring vehicles at full stop

Stop-light monitor device

Stopped vehicle warning device

Strobe light system for school buses

Super long seismic source