
Phillip's Economic Computer
1949
1949
1949
1830 (original); 1967 (model)
1839 (original); circa 1988 (replica)
1948-1950
1952-3
1948
1950
1950
1950
1948
1948
1950
1955; 1830
1949
1938 and 1951
circa 1950
1948
1949
2000-100 BCE
1948
circa 1950
circa 1950
circa 1950
1950
1949
1948
1990-96
1950
1948
1950
1949
1948
4000-2001 BCE
1948
1949
1948
1950
1950
1903 (original); 1982 (model)
1950
1948
circa 1950s
circa 1950s
1948
1950
2050-1750 BCE
1950
1990-95
1798 (original); 1977 (model)