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NEC 600P push-button telephone, 1981
1981
1981
1976
1980
(1962); 1982
2000-100 BCE
1977
1981
1981
1979
1980
1977
1981
1975
1979
1975
1976
1977
circa 1975
1977
1980
1986
1975
1976
1979
1976-1979
1978
1975-1978
1978-1980
1975
1980
1980-1981
1977
1903 (original); 1982 (model)
1979
1981
4000-2001 BCE
1990-96
1979
1978-1981
1978-1980
circa 1975
1979
1976
circa 1980
1976
1975
1978
1978
1978
1839 (original); circa 1988 (replica)