Driver alert system

Driving habit monitor and sensor therefor

Drum brake wear indicator

Dual direction indicator

Dual directional and brake light control for trailers

Dual master implied token communication system

Dual wheel, tire pressure tester

Dynamic climatic condition indicating system

Early warning signal system

Early warning system for approaching transportation vehicles

Electret cable hydrophone array

Electric apparatus for a vehicle safety device

Electric control circuit for safety apparatus in automotive vehi

Electric display device of a vehicle

Electric indicator utilizing an oscillation source of a crystal

Electric induction field navigation apparatus

Electric pneumatic pressure sensor

Electric power control system with load management programming

Electric signal transmission system on a road vehicle

Electric vehicle performance sensor and shift point indicator