When did Motorola, Nokia, Ericsson, Apple, Samsung and Huawei start making mobile phones respectively?

Motorola started making mobile phones in 1973, and it was also the first mobile phone in the world. Nokia's first mobile phone came out in 1982. At that time, Nokia was also called MOBIRA. The first mobile phone was MOBIRA NMT45. Ericsson's first mobile phone was AEX95, which was produced in 1994. Apple's first mobile phone was apple phone in 27, which was later renamed iphone. Samsung's first mobile phone was SM-1 in 1985, and Huawei's first mobile phone was u636 in 25.