Category:Robert H. Keaton

English: According to the Smithsonian, Robert H. Keaton of San Francisco, California, had two patents that covered his music typewriter, the first was given patent number 2,047,690 on July 14, 1936 and related to a 14 key music typewriter, and the second was given number 2,631,712 on March 17, 1953 and covered a 33 key music typewriter. The typewriter’s board held sheet music in place while a semicircle ring of keys containing notes and musical notation typebars could be maneuvered above the sheet music to create musical compositions Robert H. Keaton.