 Initial operational capability was established in December of that same year while in February 1994, the Federal Aviation Agency (FAA) declared GPS ready for use.1972 PET scanner

1972 Magnetic resonance imaging

1973 Personal watercraft

A personal watercraft (PWC) is a recreational watercraft that the rider sits or stands on, rather than inside of, as in a boat.Models have an inboard engine driving a pump jet that has a screw-shaped impeller to create thrust for propulsion and steering.