
Phillip's Economic Computer
1949
1949
1918-1920
1934
1903
1901-1920
1903
1918
1920-1950
1935
1920-1925
1942
1901-1930
1952-3
1920-1950
1945
circa 1919
1830 (original); 1967 (model)
1925-1935
1905
1940
1915-1925
1925-1935
1919
1928
1901-1930
1920-1950
1920-1950
1946-1950
1801-1840 (original); 1901 (model)
1940
1923
1909-1932
1940-1950
1948-1950
1910-1923
1945
1921-1931
1914-1916
1935
1911
1927
1917
1902
1936
1946
1926
1901-1910
1920
1915-1918
1930-1940