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1970-90, Graham Bell 1876 TELEPHONE, 1880-90, 1920-70, MÒBILS, FIXES,…
1970-90
Graham Bell 1876 TELEPHONE
1880-90
1920-70
MÒBILS
1990-2005
2007-2020
FIXES
Meucci 1854 TELETRÓFFONI
1990-1920
ORIGENS
Desenvolupament S.XX
Principis SXXI
