1. They then talked by radiophone 2 000 miles away to then-President Richard M. Nixon.

2. Amplifiers, microphones, loudspeakers, telephone earpieces, aerials, switches, frequency meters, measuring instruments, intercoms, video telephones, video entryphones, telephone terminals, telephone-answering machines, cordless telephones, mobile fax, scanners (data processing apparatus), telephone switchboard services and accessories for radiophone equipment (included in this class)