1920
Thomas Alva Edison, 11 Feb 1847 - 18 Oct 1931, 1890
Underwood & Underwood, active 1880 - c. 1950, 1910
Underwood & Underwood, active 1880 - c. 1950, 1930
Underwood & Underwood, active 1880 - c. 1950, 1920
Thomas Alva Edison, 11 Feb 1847 - 18 Oct 1931, 1910
Underwood & Underwood, active 1880 - c. 1950, 1861
Underwood & Underwood, active 1880 - c. 1950, 1900