When was the first cell phone invented?

A kind of wireless communication that is most recognizableto mobile phones users. It's called 'cellular' because the system uses manybase stations to split a service area into multiple cell. Cellular calls aretransferred from base station to base station as a user travels from cell tocell. - Definition from the Wireless Advisor Glossary. Martin Cooper, aMotorola researcher and executive is widely measured to be the discoverer ofthe first realistic mobile phone for hand held use in a non-vehicle setting.Cooper is the inventor named on Radio telephone system filed on October 17,1973 with the US Patent Office. The first commercial city wide cellular networkwas launched in Japan by NTT in 1979. Fully automatic cellular networks werefirst set up in the early to mid 1980s the 1G generations. The Nordic MobileTelephone (NMT) system went online in Denmark, Finland, Norway and Sweden in1981.