Bar code (1 jan 1970 ano – 1 jan 1980 ano)
Descrição:
 Barcode was invented by Norman Joseph Woodland and Bernard Silver and patented in US in 1952. The invention was based on Morse code that was extended to thin and thick bars. However, it took over twenty years before this invention became commercially successful. 
Adicionado na linha do tempo:
Data:
1 jan 1970 ano
1 jan 1980 ano
 ~ 10 years
Imagens:
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