Question

who launched mobile phone and when?​

Answer 1

Answer:

• The first handheld mobile phone was demonstrated by john F. Mitchel and Martin cooper of Motorola in 1973, using a handset weighting c.2 kilogram (4.4 lbs). In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan...

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Answer 2

Answer:

Motorola was the first company to produce a handheld mobile phone. On April 3, 1973, Martin Cooper, a Motorola researcher and executive, made the first mobile telephone call from handheld subscriber equipment, placing a call to Dr. Joel S. Engel of Bell Labs, his rival.