Operator control logging device for an electrical device
Operator intent based passive keyless vehicle control system
Operator interactive device verification system
Operator interface for plant component control system
Optical anti-theft system
Optical card-key data connector
Optical encoder
Optical sensor for utility meter
Optically coupled gas meter
Optically readable and human readable dial
Optional apparatus connectable to other apparatus
Orally Mounted wireless transcriber device
Order entry system including an interactive menu display
Out of range indication for radio receivers