
Phillip's Economic Computer
1949
1949
1934
1918-1920
1918
1920-1950
1935
1942
1920-1925
1952-3
1920-1950
1945
1940
1830 (original); 1967 (model)
1925-1935
circa 1919
1915-1925
1925-1935
1919
1928
1923
1946-1950
1940
1923
1920-1950
1920-1950
1940-1950
1948-1950
1910-1923
1935
1911
1927
1917
1936
1946
1926
1915-1918
1920
1930-1940
1945
1921-1931
1914-1916
1913
1949
1950
1934
1927
1948
circa 1915
1935-1945
1940-1945