Royal Typewriter Company

Thomas Edison patented an electric typewriter in 1872, but the first workable model was not introduced until the 1920s.

http://www.stanford.edu/~bkunde/fb-press/articles/wdprhist.html

The Royal typewriter entered the market in 1906. It would grow to be one of the leading brands that would dominate the market together with the Underwood and the Remington. The Royal was intended to be a sturdy work horse. The design featured numerous improvements over earlier machines, that were the work of the company's founder and vice-president E.B. Hess.

http://www.scripophily.net/roytypcom.html