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the origin of the investigations and the people who created this
it was created in 1973 by martin cooper
it was something heavy 28 ounces (about 793 x 1.75 x 3.5 obviously it was analog and had a small led display -
describe some actualization presented through the years
the first cell hpone many features such as your battery 20 minutes their weight over 2 kilos and price -
which have been the best moments of the decive
in 1983 un cells was hard about us $4000 which to mere than us $6500 today -
your invention nowadays
your best investment today are android windows iphone top phone today are samsung ihone huawei -
which have been the best changes according to the history
3 april 1973 martin cooper engineer matorda did the first call years later . in 2013 in spain had over 52 million
