Bar code (1 gen 1970 anni – 1 gen 1980 anni)
Descrizione:
 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. 
Aggiunto al nastro di tempo:
Data:
1 gen 1970 anni
1 gen 1980 anni
 ~ 10 years
Immagini:
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