combination pulse and frequency coding system
design oriented coding system
design attribute coding system
design and production oriented coding system
design and manufacture attribute coding system
compound space coding system
coding system used in station
coding system audio-frequency track circuit
facial action coding system
Brophy Good dyadic coding system
automatic coding system
air force coding system
adaptive OFDM modulation and coding system
ABC automatic coding system
pulse coded processing system
Three pulse exhaust system