
Phillip's Economic Computer
1949
1949
1942
1950-1952
1952-3
1945
1951
1940
1830 (original); 1967 (model)
1946-1950
1940
1940-1950
1948-1950
1946
1945
1949
1950
1948
1940-1945
1947
1938
1947
1951
1946; 1946
1943
1944
1937
1945
1938
1947
1947
1940
1938
1938
1938
1938
1940
1940
1950
1938
1938
1951
circa 1950
1950
1951
1940-1945
1950
1948
1946
1943
1948