
Phillip's Economic Computer
1949
1949
1952-3
1830 (original); 1967 (model)
1946-1950
1948-1950
1946
1947
1946; 1946
1948
1947
1949
1950
1947
1947
1948
1946
1950
1955; 1830
circa 1950
1950
1948
1949
1946-1950
1950
circa 1950
1948
1948
1946
1948
1950
1949
1946
1946-1948
1946
2000-100 BCE
1950
1938 and 1951
circa 1950
circa 1950
1949
1950
1949
1948
1990-96
1950
1903 (original); 1982 (model)
4000-2001 BCE
1949
1948
1950